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Click on an accepted name below to view its PLANTS Profile with all synonyms, distribution map, more information, and web links if available. If shown, synonyms are indented beneath accepted counterparts. Click on a column header to learn about that category. Click on the Download link at the top right of the page to download a comma delimited text version of this data to use in another application or database.

Scientific Name                               State and Province Family
Abronia CAN(BC), USA(AZ, CA, CO, ID, KS, MT, ND, NE, NM, NV, OK, OR, SD, TX, UT, WA, WY) Nyctaginaceae
Abronia ameliae USA(TX) Nyctaginaceae
Abronia angustifolia USA(AZ, NM, TX) Nyctaginaceae
Abronia carletonii USA(CO, NM, TX) Nyctaginaceae
Abronia fragrans USA(AZ, CO, KS, MT, ND, NE, NM, OK, SD, TX, UT, WA, WY) Nyctaginaceae
Abronia macrocarpa USA(TX) Nyctaginaceae
Abutilon CAN(AB, BC, MB, NB, NS, ON, PE, QC, SK), USA+(PR, VI), USA(AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MP, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, PW, RI, SC, SD, TN, TX, UM, UT, VA, VT, WA, WI, WV, WY) Malvaceae
Abutilon abutiloides USA+(PR, VI), USA(AZ, TX) Malvaceae
Abutilon berlandieri USA(TX) Malvaceae
Abutilon fruticosum USA(AR, OK, TX) Malvaceae
Abutilon hulseanum USA+(PR), USA(FL, LA, TX) Malvaceae
Abutilon hypoleucum USA(TX) Malvaceae
Abutilon malacum USA(AZ, NM, TX) Malvaceae
Abutilon mollicomum USA(AZ, NM, TX) Malvaceae
Abutilon parvulum USA(AZ, CA, CO, NM, NV, TX, UT) Malvaceae
Abutilon theophrasti CAN(AB, BC, MB, NB, NS, ON, PE, QC, SK), USA(AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Malvaceae
Abutilon trisulcatum USA(TX) Malvaceae
Abutilon wrightii USA(NM, TX) Malvaceae
Acaciella USA(AR, AZ, FL, KS, LA, MO, NM, OK, TX) Fabaceae
Acaciella angustissima USA(AR, AZ, FL, KS, LA, MO, NM, OK, TX) Fabaceae
Acaciella angustissima var. chisosiana USA(TX) Fabaceae
Acaciella angustissima var. hirta USA(AR, AZ, FL, KS, LA, MO, NM, OK, TX) Fabaceae
Acaciella leucothrix USA(TX) Fabaceae
Acalypha CAN(NB, NS, ON, QC), USA+(PR, VI), USA(AL, AR, AS, AZ, CA, CT, DC, DE, FL, FM, GA, GU, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MP, MS, NC, ND, NE, NH, NJ, NM, NY, OH, OK, PA, PW, RI, SC, SD, TN, TX, UM, VA, VT, WI, WV) Euphorbiaceae
Acalypha gracilens USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KY, LA, MA, MD, ME, MI, MO, MS, NC, NH, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA, VT, WI, WV) Euphorbiaceae
Acalypha monococca USA(AR, IL, KS, LA, MO, OK, TX) Euphorbiaceae
Acalypha monostachya USA(TX) Euphorbiaceae
Acalypha neomexicana USA(AZ, NM, TX) Euphorbiaceae
Acalypha ostryifolia USA+(PR, VI), USA(AL, AR, AZ, FL, GA, IA, IL, IN, KS, KY, LA, MO, MS, NC, NE, NJ, NM, OH, OK, PA, SC, TN, TX, VA, WV) Euphorbiaceae
Acalypha phleoides USA(AZ, NM, TX) Euphorbiaceae
Acalypha poiretii USA+(PR, VI), USA(AL, NJ, TX) Euphorbiaceae
Acalypha radians USA(TX) Euphorbiaceae
Acalypha rhomboidea CAN(NB, NS, ON, QC), USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WI, WV) Euphorbiaceae
Acalypha virginica USA(AL, AR, CT, DC, DE, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MO, MS, NC, NE, NH, NJ, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WV) Euphorbiaceae
Acanthocereus USA+(VI), USA(FL, HI, TX) Cactaceae
Acanthocereus tetragonus USA+(VI), USA(FL, HI, TX) Cactaceae
Acanthospermum CAN(ON), USA+(PR, VI), USA(AL, AR, FL, GA, HI, LA, MA, MS, NC, NJ, NY, OR, PA, SC, TN, TX, VA) Asteraceae
Acanthospermum australe USA(AL, AR, FL, GA, HI, LA, MA, MS, NC, NY, OR, PA, SC, TN, TX, VA) Asteraceae
Acarospora CAN(AB, BC, LB, MB, NB, NF, NS, NT, NU, ON, PE, QC, SK, YT), USA(AK, AR, AZ, CA, CO, CT, DE, GA, IA, ID, IL, IN, KS, KY, MA, MD, ME, MI, MN, MO, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Acarosporaceae
Acer CAN(AB, BC, LB, MB, NB, NF, NS, NT, ON, PE, QC, SK), FRA(SB), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Aceraceae
Acer floridanum USA(AL, AR, FL, GA, IL, KY, LA, MO, MS, NC, OK, SC, TN, TX, VA) Aceraceae
Acer grandidentatum USA(AZ, CO, ID, MT, NM, NV, TX, UT, WA, WY) Aceraceae
Acer grandidentatum var. grandidentatum USA(AZ, CO, ID, MT, NM, NV, TX, UT, WY) Aceraceae
Acer grandidentatum var. sinuosum USA(AZ, NM, TX) Aceraceae
Acer leucoderme USA(AL, AR, DC, FL, GA, LA, MS, NC, OK, SC, TN, TX) Aceraceae
Acer negundo CAN(AB, BC, MB, NB, NS, NT, ON, PE, QC, SK), USA(AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Aceraceae
Acer negundo var. negundo CAN(AB, BC, MB, NB, NS, NT, ON, PE, QC, SK), USA(AL, AR, CO, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV) Aceraceae
Acer negundo var. texanum USA(AL, AR, IN, KS, KY, LA, MO, MS, NC, NM, OK, TN, TX, VA) Aceraceae
Acer rubrum CAN(NB, NF, NS, ON, PE, QC), USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, NH, NJ, NY, OH, OK, OR, PA, RI, SC, TN, TX, VA, VT, WI, WV) Aceraceae
Acer rubrum var. drummondii USA(AL, AR, DE, FL, GA, IL, IN, KY, LA, MO, MS, NC, NJ, OK, SC, TN, TX, VA) Aceraceae
Acer rubrum var. rubrum CAN(NB, NF, NS, ON, PE, QC), USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, NH, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA, VT, WI, WV) Aceraceae
Acer rubrum var. trilobum CAN(NB, NS, ON, QC), USA(AL, AR, CT, DE, FL, GA, IL, IN, KY, LA, MA, MD, ME, MO, MS, NC, NH, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA, VT, WV) Aceraceae
Acer saccharinum CAN(NB, ON, QC, SK), USA(AL, AR, CA, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NM, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WA, WI, WV) Aceraceae
Achillea CAN(AB, BC, LB, MB, NB, NF, NS, NT, NU, ON, PE, QC, SK, YT), DEN(GL), FRA(SB), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Asteraceae
Achillea millefolium CAN(AB, BC, LB, MB, NB, NF, NS, NT, NU, ON, PE, QC, SK, YT), DEN(GL), FRA(SB), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Asteraceae
Achillea millefolium var. occidentalis CAN(AB, BC, LB, MB, NB, NF, NS, NT, NU, ON, PE, QC, SK, YT), DEN(GL), FRA(SB), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Asteraceae
Achnatherum CAN(AB, BC, MB, SK, YT), USA(AK, AR, AZ, CA, CO, ID, KS, MN, MT, ND, NE, NM, NV, OK, OR, SD, TX, UT, WA, WY) Poaceae
Achnatherum aridum USA(AZ, CA, CO, NM, NV, TX, UT) Poaceae
Achnatherum clandestinum USA(TX) Poaceae
Achnatherum curvifolium USA(NM, TX) Poaceae
Achnatherum eminens USA(AZ, NM, TX) Poaceae
Achnatherum hymenoides CAN(AB, BC, MB, SK, YT), USA(AR, AZ, CA, CO, ID, KS, MN, MT, ND, NE, NM, NV, OK, OR, SD, TX, UT, WA, WY) Poaceae
Achnatherum lobatum USA(AZ, NM, TX) Poaceae
Achnatherum nelsonii CAN(AB, BC, SK, YT), USA(AZ, CA, CO, ID, MT, NM, NV, OR, SD, TX, UT, WA, WY) Poaceae
Achnatherum nelsonii ssp. dorei CAN(AB, BC, SK, YT), USA(AZ, CA, CO, ID, MT, NM, NV, OR, SD, TX, UT, WA, WY) Poaceae
Achnatherum perplexum USA(AZ, NM, TX, UT) Poaceae
Achnatherum robustum USA(AZ, CO, KS, NE, NM, SD, TX, WY) Poaceae
Achnatherum scribneri USA(CO, NM, OK, TX, WY) Poaceae
Achyranthes USA+(PR, VI), USA(AL, FL, HI, IN, KY, LA, MD, NAV, OH, PW, TX, UM, WV) Amaranthaceae
Achyranthes aspera USA+(PR, VI), USA(AL, FL, HI, LA, MD, NAV, PW, TX) Amaranthaceae
Achyranthes aspera var. pubescens USA+(PR), USA(FL, HI, MD, PW, TX) Amaranthaceae
Acleisanthes USA(AZ, CA, NM, TX) Nyctaginaceae
Acleisanthes acutifolia USA(TX) Nyctaginaceae
Acleisanthes anisophylla USA(TX) Nyctaginaceae
Acleisanthes crassifolia USA(TX) Nyctaginaceae
Acleisanthes longiflora USA(AZ, CA, NM, TX) Nyctaginaceae
Acleisanthes obtusa USA(TX) Nyctaginaceae
Acleisanthes wrightii USA(TX) Nyctaginaceae
Acmella USA+(PR), USA(AL, AR, FL, GA, LA, MO, MS, NC, NJ, OK, PW, SC, TN, TX) Asteraceae
Acmella oppositifolia USA(AL, AR, FL, GA, LA, MO, MS, NC, OK, SC, TN, TX) Asteraceae
Acmella oppositifolia var. repens USA(AL, AR, FL, GA, LA, MO, MS, NC, OK, SC, TN, TX) Asteraceae
Acorus CAN(AB, BC, MB, NB, NF, NS, NT, ON, PE, QC, SK), USA(AK, AL, AR, CA, CO, CT, DC, DE, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, VA, VT, WA, WI, WV) Acoraceae
Acorus calamus CAN(MB, NB, NS, ON, PE, QC), USA(AL, AR, CA, CO, CT, DC, DE, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, NE, NH, NJ, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, VA, VT, WA, WI, WV) Acoraceae
Acourtia USA(AZ, CA, NM, NV, TX, UT) Asteraceae
Acourtia nana USA(AZ, NM, TX) Asteraceae
Acourtia runcinata USA(TX) Asteraceae
Acourtia wrightii USA(AZ, NM, NV, TX, UT) Asteraceae
Acroptilon CAN(AB, BC, MB, ON, SK), USA(AR, AZ, CA, CO, IA, ID, IL, IN, KS, KY, MI, MN, MO, MT, ND, NE, NM, NV, OH, OK, OR, SD, TX, UT, WA, WI, WY) Asteraceae
Acroptilon repens CAN(AB, BC, MB, ON, SK), USA(AR, AZ, CA, CO, IA, ID, IL, IN, KS, KY, MI, MN, MO, MT, ND, NE, NM, NV, OH, OK, OR, SD, TX, UT, WA, WI, WY) Asteraceae
Adelia USA+(PR, VI), USA(TX) Euphorbiaceae
Adelia vaseyi USA(TX) Euphorbiaceae
Adiantum CAN(AB, BC, NB, NF, NS, ON, QC), USA+(PR, VI), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NAV, NC, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, PW, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Pteridaceae
Adiantum capillus-veneris CAN(BC), USA+(PR), USA(AL, AR, AZ, CA, CO, FL, GA, HI, KY, LA, MD, MO, MS, NC, NM, NV, OH, OK, SC, SD, TN, TX, UT, VA) Pteridaceae
Adiantum tricholepis USA(TX) Pteridaceae
Adolphia USA(CA, NM, TX) Rhamnaceae
Adolphia infesta USA(NM, TX) Rhamnaceae
Adonis CAN(MB, ON), USA(AL, AR, CA, ID, KY, LA, MO, MT, NY, OR, TN, TX, UT, WA) Ranunculaceae
Adonis annua CAN(MB, ON), USA(AL, AR, ID, KY, LA, MO, MT, TN, TX, WA) Ranunculaceae
Aegilops USA(AL, AR, AZ, CA, CO, IA, ID, IL, IN, KS, KY, LA, MD, MI, MO, MT, ND, NE, NM, NV, NY, OH, OK, OR, PA, SD, TN, TX, UT, VA, WA, WV, WY) Poaceae
Aegilops cylindrica USA(AL, AR, AZ, CA, CO, IA, ID, IL, IN, KS, KY, LA, MI, MO, MT, ND, NE, NM, NV, NY, OH, OK, OR, PA, SD, TN, TX, UT, VA, WA, WV, WY) Poaceae
Aeschynomene USA+(PR, VI), USA(AL, AR, AZ, CA, DE, FL, GA, HI, LA, MD, MO, MS, NC, NJ, OK, PA, PW, SC, TX, VA) Fabaceae
Aeschynomene evenia USA+(PR), USA(TX) Fabaceae
Aeschynomene indica USA+(PR), USA(AL, AR, FL, GA, LA, MO, MS, NC, OK, SC, TX, VA) Fabaceae
Aeschynomene rudis USA+(PR), USA(AL, AR, CA, FL, GA, LA, MO, NC, PA, SC, TX) Fabaceae
Aeschynomene viscidula USA(AL, FL, GA, MS, TX) Fabaceae
Aesculus CAN(BC, NB, ON, QC), USA(AL, AR, CA, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, NE, NH, NJ, NY, OH, OK, OR, PA, RI, SC, TN, TX, VA, WA, WI, WV) Hippocastanaceae
Aesculus ×bushii USA(AL, AR, LA, MO, MS, OK, TX) Hippocastanaceae
Aesculus glabra CAN(ON), USA(AL, AR, GA, IA, IL, IN, KS, KY, ME, MI, MN, MO, MS, NE, NH, NJ, NY, OH, OK, PA, TN, TX, VA, WI, WV) Hippocastanaceae
Aesculus glabra var. arguta USA(AR, IA, KS, MO, NE, OK, TX) Hippocastanaceae
Aesculus glabra var. glabra CAN(ON), USA(AL, AR, GA, IA, IL, IN, KS, KY, ME, MI, MN, MO, MS, NH, NJ, NY, OH, OK, PA, TN, TX, WI, WV) Hippocastanaceae
Aesculus pavia CAN(ON), USA(AL, AR, FL, GA, IL, IN, KY, LA, MO, MS, NC, OH, OK, SC, TN, TX, VA, WV) Hippocastanaceae
Aesculus pavia var. flavescens USA(TX) Hippocastanaceae
Aesculus pavia var. pavia CAN(ON), USA(AL, AR, FL, GA, IL, KY, LA, MO, MS, NC, OK, SC, TN, TX, VA, WV) Hippocastanaceae
Agalinis CAN(MB, NB, NS, ON, QC), USA+(PR), USA(AL, AR, CO, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NM, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WI, WV, WY) Scrophulariaceae
Agalinis aspera CAN(MB), USA(AR, IA, IL, KS, MN, MO, ND, NE, OK, SD, TX, WI) Scrophulariaceae
Agalinis auriculata USA(AL, AR, DC, IA, IL, IN, KS, KY, MD, MI, MN, MO, MS, NJ, OH, OK, PA, SC, TN, TX, VA, WI, WV) Scrophulariaceae
Agalinis calycina USA(NM, TX) Scrophulariaceae
Agalinis densiflora USA(KS, OK, TX) Scrophulariaceae
Agalinis edwardsiana USA(TX) Scrophulariaceae
Agalinis fasciculata USA+(PR), USA(AL, AR, DE, FL, GA, IL, IN, KS, KY, LA, MD, MO, MS, NC, NJ, NY, OK, PA, SC, TN, TX, VA) Scrophulariaceae
Agalinis gattingeri CAN(ON), USA(AL, AR, IA, IL, IN, KS, KY, LA, MI, MN, MO, MS, NC, NE, OH, OK, TN, TX, WI) Scrophulariaceae
Agalinis heterophylla USA(AL, AR, GA, KS, LA, MO, MS, OK, TN, TX) Scrophulariaceae
Agalinis homalantha USA(AR, LA, OK, TX) Scrophulariaceae
Agalinis maritima CAN(NB, NS), USA(AL, CT, DE, FL, LA, MA, MD, ME, MS, NC, NH, NJ, NY, RI, SC, TX, VA) Scrophulariaceae
Agalinis maritima var. grandiflora USA(AL, FL, LA, MS, NC, SC, TX, VA) Scrophulariaceae
Agalinis navasotensis USA(TX) Scrophulariaceae
Agalinis oligophylla USA(AL, LA, MS, TN, TX) Scrophulariaceae
Agalinis pulchella USA(AL, FL, GA, LA, MS, TX) Scrophulariaceae
Agalinis purpurea CAN(ON), USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, MI, MN, MO, MS, NC, NE, NH, NJ, NY, OH, PA, RI, SC, TN, TX, VA, WI, WV) Scrophulariaceae
Agalinis strictifolia USA(TX) Scrophulariaceae
Agalinis tenuifolia CAN(MB, NB, ON, QC), USA(AL, AR, CO, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NM, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WI, WV, WY) Scrophulariaceae
Agalinis tenuifolia var. leucanthera USA(AL, AR, FL, GA, LA, TX) Scrophulariaceae
Agalinis tenuifolia var. macrophylla CAN(ON), USA(AL, AR, CT, GA, IA, IL, IN, KS, KY, LA, MI, MN, MO, MS, NE, NY, OH, OK, PA, TN, TX, WI) Scrophulariaceae
Agalinis tenuifolia var. parviflora CAN(MB, ON, QC), USA(CO, IA, IL, IN, KS, MA, MI, MN, MO, ND, NE, NM, NY, OH, OK, SD, TX, VT, WI, WY) Scrophulariaceae
Agalinis viridis USA(AR, LA, MO, MS, OK, TX) Scrophulariaceae
Agastache CAN(AB, BC, MB, NB, NT, ON, QC, SK), USA(AL, AR, AZ, CA, CO, CT, DC, DE, GA, IA, ID, IL, IN, KS, KY, MA, MD, MI, MN, MO, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Lamiaceae
Agastache cana USA(NM, TX) Lamiaceae
Agastache micrantha USA(AZ, NM, TX) Lamiaceae
Agastache pallidiflora USA(AZ, CO, NM, TX) Lamiaceae
Agastache pallidiflora ssp. neomexicana USA(NM, TX) Lamiaceae
Agastache pallidiflora ssp. neomexicana var. havardii USA(NM, TX) Lamiaceae
Agave USA+(PR, VI), USA(AZ, CA, FL, HI, LA, NM, NV, PW, TX, UM, UT) Agavaceae
Agave americana USA+(VI), USA(AZ, CA, FL, HI, LA, TX) Agavaceae
Agave americana ssp. americana USA+(VI), USA(AZ, CA, FL, HI, LA, TX) Agavaceae
Agave americana ssp. americana var. americana USA+(VI), USA(FL, HI, LA, TX) Agavaceae
Agave americana ssp. protamericana USA(TX) Agavaceae
Agave asperrima USA(TX) Agavaceae
Agave glomeruliflora USA(TX) Agavaceae
Agave gracilipes USA(NM, TX) Agavaceae
Agave havardiana USA(TX) Agavaceae
Agave lechuguilla USA(NM, TX) Agavaceae
Agave parryi USA(AZ, NM, TX) Agavaceae
Agave parryi ssp. neomexicana USA(NM, TX) Agavaceae
Agave parryi ssp. parryi USA(AZ, NM, TX) Agavaceae
Agave univittata USA(AZ, TX) Agavaceae
Agave weberi USA(TX) Agavaceae
Agdestis USA+(PR), USA(FL, TX) Phytolaccaceae
Agdestis clematidea USA+(PR), USA(FL, TX) Phytolaccaceae
Ageratina CAN(NB, NS, NT, ON, QC), USA+(PR), USA(AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV) Asteraceae
Ageratina altissima CAN(NB, NS, NT, ON, QC), USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WI, WV) Asteraceae
Ageratina altissima var. altissima CAN(NB, NS, NT, ON, QC), USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WI, WV) Asteraceae
Ageratina altissima var. angustata USA(AR, IL, LA, MO, OK, TX) Asteraceae
Ageratina havanensis USA(TX) Asteraceae
Ageratina herbacea USA(AZ, CA, CO, NM, NV, TX, UT) Asteraceae
Ageratina rothrockii USA(AZ, NM, TX) Asteraceae
Ageratina wrightii USA(AZ, NM, TX) Asteraceae
Ageratum USA+(PR, VI), USA(AL, AZ, CA, CT, FL, GA, HI, KY, LA, MA, MD, MO, MS, NC, NM, PW, SC, TX) Asteraceae
Ageratum corymbosum USA(AZ, NM, TX) Asteraceae
Agrimonia CAN(AB, BC, MB, NB, NF, NS, ON, PE, QC, SK), FRA(SB), USA(AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, VA, VT, WA, WI, WV, WY) Rosaceae
Agrimonia incisa USA(AL, FL, GA, LA, MS, NC, SC, TX) Rosaceae
Agrimonia microcarpa USA(AL, CT, FL, GA, IL, KS, KY, LA, MD, MS, NC, NJ, OH, PA, SC, TN, TX, VA, WV) Rosaceae
Agrimonia parviflora CAN(ON), USA(AL, AR, CT, DC, DE, GA, IA, IL, IN, KS, KY, LA, MA, MD, MI, MO, MS, NC, NE, NJ, NY, OH, OK, PA, SC, SD, TN, TX, VA, WI, WV) Rosaceae
Agrimonia rostellata USA(AL, AR, CT, DC, DE, FL, GA, IL, IN, KS, KY, LA, MA, MD, MI, MN, MO, MS, NC, NJ, NY, OH, OK, PA, SC, TN, TX, VA, WI, WV) Rosaceae
×Agropogon USA(AL, CA, LA, NM, TX, WA) Poaceae
×Agropogon littoralis USA(AL, CA, LA, NM, TX, WA) Poaceae
Agropyron CAN(AB, BC, LB, MB, NS, NT, ON, QC, SK, YT), USA(AK, AZ, CA, CO, CT, DE, IA, ID, IL, IN, KS, KY, MA, MI, MN, MO, MT, ND, NE, NH, NM, NV, NY, OH, OK, OR, SD, TX, UT, WA, WI, WY) Poaceae
Agropyron cristatum CAN(AB, BC, LB, MB, NS, NT, ON, QC, SK, YT), USA(AK, CA, CO, CT, DE, IA, ID, IL, IN, KS, KY, MA, MI, MN, MT, ND, NE, NH, NM, NV, NY, OK, OR, SD, TX, UT, WA, WY) Poaceae
Agropyron cristatum ssp. pectinatum CAN(AB, BC, LB, MB, NS, NT, ON, QC, SK, YT), USA(AK, CA, CO, DE, IA, ID, IL, IN, KS, KY, MA, MI, MN, MT, ND, NE, NH, NM, NV, NY, OK, OR, SD, TX, UT, WA, WY) Poaceae
Agropyron desertorum USA(AZ, CA, CO, IA, IL, IN, KS, MA, MO, MT, ND, NM, NV, NY, OH, OR, SD, TX, UT, WI, WY) Poaceae
Agrostemma CAN(MB, NB, ON, PE, QC, SK), USA(AK, AL, AR, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, VA, VT, WA, WI, WV, WY) Caryophyllaceae
Agrostemma githago CAN(MB, NB, ON, PE, QC, SK), USA(AK, AL, AR, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, VA, VT, WA, WI, WV, WY) Caryophyllaceae
Agrostis CAN(AB, BC, LB, MB, NB, NF, NS, NT, NU, ON, PE, QC, SK, YT), DEN(GL), FRA(SB), USA+(PR) Poaceae
Agrostis avenacea USA(CA, HI, OH, SC, TX) Poaceae
Agrostis elliottiana USA(AL, AR, AZ, CA, DC, FL, GA, IL, IN, KS, KY, LA, MA, MD, ME, MO, MS, NC, NM, OH, OK, PA, SC, TN, TX, VA) Poaceae
Agrostis exarata CAN(AB, BC, NT, SK, YT), USA(AK, AZ, CA, CO, ID, KY, MT, NE, NM, NV, OK, OR, SD, TX, UT, VT, WA, WY) Poaceae
Agrostis gigantea CAN(AB, BC, MB, NB, NF, NS, NT, ON, PE, QC, SK, YT), DEN(GL), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, TN, TX, UT, VA, VT, WA, WI, WV, WY) Poaceae
Agrostis hyemalis CAN(ON), USA+(PR), USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, NE, NH, NJ, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WI, WV) Poaceae
Agrostis perennans CAN(NB, NF, NS, ON, PE, QC), USA(AL, AR, CA, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, VA, VT, WA, WI, WV) Poaceae
Agrostis scabra CAN(AB, BC, LB, MB, NB, NF, NS, NT, NU, ON, PE, QC, SK, YT), DEN(GL), FRA(SB), USA(AK, AL, AR, AZ, CA, CO, CT, DE, FL, GA, IA, ID, IL, IN, KY, LA, MA, MD, ME, MI, MN, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Poaceae
Agrostis stolonifera CAN(AB, BC, LB, MB, NB, NF, NS, NT, ON, PE, QC, SK), DEN(GL), FRA(SB), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Poaceae
Ailanthus CAN(ON, QC), USA(AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MO, MS, NC, NE, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, TN, TX, UT, VA, WA, WI, WV) Simaroubaceae
Ailanthus altissima CAN(ON, QC), USA(AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MO, MS, NC, NE, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, TN, TX, UT, VA, WA, WI, WV) Simaroubaceae
Aira CAN(BC, NS, YT), USA(AK, AL, AR, CA, CT, DC, DE, FL, GA, HI, ID, IL, IN, LA, MA, MD, MO, MS, NC, NH, NJ, NM, NY, OH, OK, OR, PA, SC, TN, TX, VA, VT, WA, WY) Poaceae
Aira caryophyllea CAN(BC, NS, YT), USA(AK, AL, AR, CA, CT, DC, DE, FL, GA, HI, ID, IL, IN, LA, MA, MD, MO, MS, NC, NH, NJ, NY, OH, OK, OR, PA, SC, TN, TX, VA, VT, WA, WY) Poaceae
Aira caryophyllea var. caryophyllea CAN(BC, NS, YT), USA(AK, AL, AR, CA, CT, DC, DE, FL, GA, HI, ID, IL, IN, LA, MA, MD, MO, MS, NC, NH, NJ, NY, OH, OK, OR, PA, SC, TN, TX, VA, VT, WA, WY) Poaceae
Aira elegans USA(AL, AR, CA, FL, GA, HI, LA, MD, MO, MS, NC, NJ, NM, OK, OR, SC, TN, TX, VA, WA) Poaceae
Ajuga CAN(BC, NF, NS, ON, QC), USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MS, NC, NJ, NY, OH, OR, PA, RI, SC, TN, TX, UT, VA, VT, WA, WI, WV) Lamiaceae
Ajuga reptans CAN(BC, NF, NS, ON, QC), USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MS, NC, NJ, NY, OH, OR, PA, RI, SC, TN, TX, UT, VA, VT, WA, WI, WV) Lamiaceae
Albizia USA+(PR, VI), USA(AL, AR, AZ, CA, CT, DC, DE, FL, FM, GA, HI, IL, IN, KY, LA, MA, MD, MO, MS, NC, NJ, NM, NY, OH, OK, PA, PW, SC, TN, TX, UM, UT, VA, WV) Fabaceae
Albizia julibrissin USA(AL, AR, AZ, CA, CT, DC, DE, FL, GA, IL, IN, KY, LA, MA, MD, MO, MS, NC, NJ, NM, NY, OH, OK, PA, SC, TN, TX, UT, VA, WV) Fabaceae
Albizia lebbeck USA+(PR, VI), USA(CA, FL, HI, PW, TX, UM) Fabaceae
Alcea CAN(MB, NB, ON, QC), USA+(PR), USA(CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, MA, MD, MI, MN, MO, MS, MT, NC, ND, NE, NJ, NM, NV, NY, OH, OR, PA, RI, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Malvaceae
Alcea rosea CAN(MB, NB, ON, QC), USA+(PR), USA(CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, MA, MD, MI, MN, MO, MS, MT, NC, ND, NE, NJ, NM, NV, NY, OH, OR, PA, RI, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Malvaceae
Aletes USA(AZ, CO, NM, TX, UT, WY) Apiaceae
Aletes acaulis USA(CO, NM, TX) Apiaceae
Aletes filifolius USA(NM, TX) Apiaceae
Aletris CAN(ON), USA(AL, AR, CT, DC, DE, FL, GA, IL, IN, KY, LA, MA, MD, ME, MI, MN, MS, NC, NH, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA, WI, WV) Liliaceae
Aletris aurea USA(AL, AR, FL, GA, LA, MD, MS, NC, OK, SC, TX, VA) Liliaceae
Aletris farinosa CAN(ON), USA(AL, AR, CT, DC, DE, FL, GA, IL, IN, KY, LA, MA, MD, ME, MI, MN, MS, NC, NH, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA, WI, WV) Liliaceae
Alhagi USA(AZ, CA, CO, ID, NM, NV, TX, UT, WA) Fabaceae
Alhagi maurorum USA(AZ, CA, CO, ID, NM, NV, TX, UT, WA) Fabaceae
Alisma CAN(AB, BC, MB, NB, NF, NS, NT, ON, PE, QC, SK, YT), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, GA, IA, ID, IL, IN, KS, KY, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Alismataceae
Alisma subcordatum CAN(MB, NB, ON, QC), USA(AL, AR, AZ, CA, CO, CT, DC, DE, GA, IA, IL, IN, KS, KY, MA, MD, ME, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NM, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, VA, VT, WI, WV) Alismataceae
Allenrolfea USA(AZ, CA, ID, NM, NV, OR, TX, UT) Chenopodiaceae
Allenrolfea occidentalis USA(AZ, CA, ID, NM, NV, OR, TX, UT) Chenopodiaceae
Allionia USA(AZ, CA, CO, NM, NV, OK, TX, UT) Nyctaginaceae
Allionia choisyi USA(AZ, CO, NM, TX, UT) Nyctaginaceae
Allionia incarnata USA(AZ, CA, CO, NM, NV, OK, TX, UT) Nyctaginaceae
Allionia incarnata var. incarnata USA(AZ, CO, NM, OK, TX, UT) Nyctaginaceae
Allium CAN(AB, BC, LB, MB, NB, NF, NS, NT, ON, QC, SK, YT), USA+(VI), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, PW, RI, SC, SD, TN, TX, UM, UT, VA, VT, WA, WI, WV, WY) Liliaceae
Allium ampeloprasum USA(AL, AR, CA, GA, IL, KY, LA, MS, NC, NY, OH, OK, SC, TN, TX, VA) Liliaceae
Allium canadense CAN(NB, ON, QC), USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WI, WV) Liliaceae
Allium canadense var. canadense CAN(NB, ON, QC), USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WI, WV) Liliaceae
Allium canadense var. ecristatum USA(TX) Liliaceae
Allium canadense var. fraseri USA(KS, MT, NE, OK, SD, TX) Liliaceae
Allium canadense var. hyacinthoides USA(OK, TX) Liliaceae
Allium canadense var. mobilense USA(AL, AR, FL, GA, IA, IL, KS, KY, LA, MO, MS, NC, OK, SC, TN, TX) Liliaceae
Allium cepa USA(AR, CA, CT, IL, IN, KS, KY, LA, MA, ME, MI, MO, MS, MT, NC, NH, NY, OH, OR, PA, PW, SC, TX, UM, VT, WI) Liliaceae
Allium cernuum CAN(AB, BC, ON, SK), USA(AL, AR, AZ, CO, DC, GA, IA, ID, IL, IN, KY, MD, MI, MN, MO, MS, MT, NC, NE, NJ, NM, NY, OH, OR, PA, SC, SD, TN, TX, UT, VA, WA, WI, WV, WY) Liliaceae
Allium cernuum var. cernuum CAN(AB, BC, ON, SK), USA(AL, AR, CO, DC, GA, IA, ID, IL, IN, KY, MD, MI, MN, MO, MS, MT, NC, NE, NY, OH, OR, PA, SC, SD, TN, TX, UT, VA, WA, WI, WV, WY) Liliaceae
Allium cernuum var. neomexicanum USA(AZ, NM, TX) Liliaceae
Allium coryi USA(TX) Liliaceae
Allium drummondii USA(AR, KS, NE, NM, OK, SD, TX) Liliaceae
Allium elmendorfii USA(TX) Liliaceae
Allium geyeri CAN(AB, BC, SK), USA(AZ, CO, ID, MT, NM, NV, OR, SD, TX, UT, WA, WY) Liliaceae
Allium geyeri var. geyeri CAN(AB, SK), USA(AZ, CO, ID, MT, NM, NV, OR, SD, TX, UT, WA, WY) Liliaceae
Allium glandulosum USA(AZ, NM, TX) Liliaceae
Allium kunthii USA(AZ, NM, TX) Liliaceae
Allium macropetalum USA(AZ, CO, NM, TX, UT) Liliaceae
Allium perdulce USA(IA, KS, NE, NM, OK, SD, TX) Liliaceae
Allium perdulce var. perdulce USA(IA, KS, NE, NM, OK, SD, TX) Liliaceae
Allium perdulce var. sperryi USA(TX) Liliaceae
Allium porrum USA(AR, IA, IL, KS, NY, OH, TX) Liliaceae
Allium runyonii USA(TX) Liliaceae
Allium stellatum CAN(MB, ON, SK), USA(AR, IA, IL, IN, KS, MI, MN, MO, ND, OK, SD, TN, TX, WI, WY) Liliaceae
Allolepis USA(TX) Poaceae
Allolepis texana USA(TX) Poaceae
Allowissadula USA(NM, TX) Malvaceae
Allowissadula holosericea USA(NM, TX) Malvaceae
Allowissadula lozanii USA(TX) Malvaceae
Alnus CAN(AB, BC, LB, MB, NB, NF, NS, NT, NU, ON, PE, QC, SK, YT), DEN(GL), FRA(SB), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, TN, TX, UT, VA, VT, WA, WI, WV, WY) Betulaceae
Alnus serrulata CAN(NB, NS, QC), USA(AL, AR, CT, DC, DE, FL, GA, IL, IN, KS, KY, LA, MA, MD, ME, MO, MS, NC, NH, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA, VT, WV) Betulaceae
Alocasia USA+(PR), USA(FL, HI, PW, TX, UM) Araceae
Alocasia macrorrhizos USA+(PR), USA(FL, HI, PW, TX, UM) Araceae
Aloe USA+(PR, VI), USA(CA, FL, HI, PW, TX) Aloaceae
Aloe vera USA+(PR, VI), USA(FL, HI, TX) Aloaceae
Alopecurus CAN(AB, BC, LB, MB, NB, NF, NS, NT, NU, ON, PE, QC, SK, YT), DEN(GL), FRA(SB), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Poaceae
Alopecurus carolinianus CAN(AB, BC, SK), USA(AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, MI, MN, MO, MS, MT, NC, ND, NE, NJ, NM, NY, OH, OK, OR, PA, SC, SD, TN, TX, UT, VA, WA, WI, WV, WY) Poaceae
Alopecurus geniculatus CAN(AB, BC, LB, NB, NF, NS, ON, PE, QC, SK, YT), DEN(GL), FRA(SB), USA(AK, AZ, CA, CO, CT, DC, IA, ID, IL, MA, MD, ME, MI, MN, MT, ND, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SD, TX, UT, VA, VT, WA, WI, WV, WY) Poaceae
Alopecurus geniculatus var. geniculatus CAN(AB, BC, LB, NB, NF, NS, ON, PE, QC, SK, YT), DEN(GL), FRA(SB), USA(AK, AZ, CA, CO, CT, DC, IA, ID, IL, MA, MD, ME, MI, MN, MT, ND, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SD, TX, UT, VA, VT, WA, WI, WV, WY) Poaceae
Alopecurus myosuroides CAN(MB), USA(AL, CA, DC, DE, KS, KY, LA, MA, MD, ME, MI, MS, NC, NJ, NM, NY, OH, OR, PA, RI, SC, TX, VA, WA, WV) Poaceae
Alophia USA(AR, LA, MS, OK, TX) Iridaceae
Alophia drummondii USA(AR, LA, MS, OK, TX) Iridaceae
Aloysia USA+(PR), USA(AZ, CA, GA, NC, NM, NV, TX, UT) Verbenaceae
Aloysia gratissima USA(AZ, NM, TX) Verbenaceae
Aloysia gratissima var. gratissima USA(NM, TX) Verbenaceae
Aloysia gratissima var. schulziae USA(AZ, TX) Verbenaceae
Aloysia macrostachya USA(TX) Verbenaceae
Aloysia wrightii USA(AZ, CA, NM, NV, TX, UT) Verbenaceae
Alternanthera USA+(PR, VI), USA(AL, AR, AZ, CA, FL, GA, HI, IL, KY, LA, MD, MO, MS, NC, NJ, NM, NY, OK, PA, PW, SC, TN, TX, UM, VA) Amaranthaceae
Alternanthera bettzichiana USA+(PR, VI), USA(CA, FL, HI, MD, TX) Amaranthaceae
Alternanthera caracasana USA+(PR, VI), USA(AL, AR, AZ, CA, FL, GA, HI, LA, MD, MO, MS, NC, NM, OK, SC, TX) Amaranthaceae
Alternanthera flavogrisea USA(TX) Amaranthaceae
Alternanthera paronychioides USA+(PR, VI), USA(AL, FL, GA, LA, MS, NC, NJ, PA, SC, TX) Amaranthaceae
Alternanthera paronychioides var. paronychioides USA+(PR, VI), USA(AL, FL, GA, LA, MS, NC, NJ, PA, SC, TX) Amaranthaceae
Alternanthera philoxeroides USA+(PR), USA(AL, AR, CA, FL, GA, IL, KY, LA, MS, NC, OK, SC, TN, TX, VA) Amaranthaceae
Alternanthera pungens USA+(PR), USA(AL, FL, GA, HI, NY, SC, TX, VA) Amaranthaceae
Alternanthera sessilis USA+(PR, VI), USA(AL, AR, FL, GA, HI, LA, MD, MS, PW, SC, TX) Amaranthaceae
Alysicarpus USA+(PR, VI), USA(AL, FL, GA, HI, LA, MS, NC, PW, TX, VA) Fabaceae
Alysicarpus vaginalis USA+(PR, VI), USA(AL, FL, GA, HI, LA, MS, NC, PW, TX, VA) Fabaceae
Amaranthus CAN(AB, BC, LB, MB, NB, NF, NS, NT, ON, PE, QC, SK), FRA(SB), USA+(PR, VI), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NAV, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, PW, RI, SC, SD, TN, TX, UM, UT, VA, VT, WA, WI, WV, WY) Amaranthaceae
Amaranthus ×texensis USA(TX) Amaranthaceae
Amaranthus acanthochiton USA(AZ, NM, TX, UT) Amaranthaceae
Amaranthus albus CAN(AB, BC, LB, MB, NB, NS, ON, PE, QC, SK), FRA(SB), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Amaranthaceae
Amaranthus arenicola USA(AR, CA, CO, DC, IA, IL, IN, KS, KY, LA, MI, MO, MT, NE, NJ, NM, OK, PA, SD, TN, TX, VA, WI, WY) Amaranthaceae
Amaranthus australis USA+(PR), USA(AL, FL, LA, MS, NC, TN, TX, VA) Amaranthaceae
Amaranthus bigelovii USA(LA, NM, TX) Amaranthaceae
Amaranthus blitoides CAN(AB, BC, MB, ON, QC, SK), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MT, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Amaranthaceae
Amaranthus blitum CAN(NS, ON, QC), USA+(PR), USA(AL, AR, CA, CT, DC, FL, GA, HI, LA, MA, MD, MO, NC, NH, NJ, NY, OH, PA, SC, TN, TX, UM, UT, VA, WA) Amaranthaceae
Amaranthus blitum var. pseudogracilis USA(FL, MO, PA, TX, UM) Amaranthaceae
Amaranthus californicus CAN(AB, SK), USA(CA, ID, KS, MT, NE, NV, OR, SD, TX, UT, WA, WY) Amaranthaceae
Amaranthus crassipes USA+(PR, VI), USA(AL, AZ, FL, NM, PA, SC, TX) Amaranthaceae
Amaranthus crassipes var. crassipes USA+(PR, VI), USA(AL, AZ, FL, PA, SC, TX) Amaranthaceae
Amaranthus crassipes var. warnockii USA(NM, TX) Amaranthaceae
Amaranthus cruentus CAN(BC, ON, QC), USA+(PR), USA(AL, AZ, CA, CT, DC, DE, HI, IL, IN, KY, MA, MD, ME, MI, MO, NC, NE, NH, NJ, NM, NY, OH, OR, PA, RI, SC, TX, UT, VA, VT, WA, WI, WV) Amaranthaceae
Amaranthus fimbriatus USA(AZ, CA, NM, NV, TX, UT) Amaranthaceae
Amaranthus greggii USA(LA, TX) Amaranthaceae
Amaranthus hybridus CAN(MB, NS, ON, QC), USA(AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UM, VA, VT, WA, WI, WV) Amaranthaceae
Amaranthus hypochondriacus USA(AZ, CA, FL, KS, MA, MI, MN, MO, MS, NE, NM, NY, PA, TX, UT, WI) Amaranthaceae
Amaranthus obcordatus USA(AZ, NM, TX) Amaranthaceae
Amaranthus palmeri CAN(ON), USA(AR, AZ, CA, CO, FL, GA, IL, KS, KY, LA, MA, MD, MO, MS, NC, NE, NJ, NM, NV, NY, OH, OK, PA, SC, TN, TX, UT, VA, WI, WV) Amaranthaceae
Amaranthus polygonoides USA+(VI), USA(FL, NM, SC, TX) Amaranthaceae
Amaranthus powellii CAN(AB, BC, ON, PE, QC, SK), USA(AR, AZ, CA, CO, CT, FL, IA, ID, IL, IN, KS, KY, LA, MA, ME, MI, MN, MO, MS, MT, NC, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, SC, SD, TX, UT, VA, VT, WA, WI, WV, WY) Amaranthaceae
Amaranthus powellii ssp. powellii CAN(AB, BC, ON, PE, QC, SK), USA(AR, AZ, CA, CO, CT, FL, IA, ID, IL, IN, KS, LA, MA, ME, MI, MN, MO, MS, MT, NC, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, SC, SD, TX, UT, VA, VT, WA, WI, WV, WY) Amaranthaceae
Amaranthus retroflexus CAN(AB, BC, MB, NB, NF, NS, NT, ON, PE, QC, SK), FRA(SB), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Amaranthaceae
Amaranthus scleropoides USA(OK, TX) Amaranthaceae
Amaranthus spinosus CAN(MB, ON), USA+(PR, VI), USA(AL, AR, CA, CT, DC, DE, FL, GA, HI, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, NE, NJ, NY, OH, OK, PA, PW, RI, SC, TN, TX, UM, VA, VT, WI, WV) Amaranthaceae
Amaranthus tamaulipensis USA(TX) Amaranthaceae
Amaranthus torreyi USA(AZ, CA, NM, TX) Amaranthaceae
Amaranthus tuberculatus CAN(MB, ON, QC), USA(AL, AR, CA, CO, CT, DE, GA, IA, ID, IL, IN, KS, KY, LA, MA, ME, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NM, NY, OH, OK, PA, SC, SD, TN, TX, VT, WA, WI, WV) Amaranthaceae
Amaranthus viridis USA+(VI), USA(AL, AR, AZ, FL, GA, HI, LA, MA, MI, MS, NAV, NC, NM, NY, OK, PA, PW, SC, TN, TX, UM, VA) Amaranthaceae
Amaranthus wrightii USA(AZ, CO, NM, TX, UT) Amaranthaceae
Amblyolepis USA(TX) Asteraceae
Amblyolepis setigera USA(TX) Asteraceae
Ambrosia CAN(AB, BC, MB, NB, NF, NS, NT, ON, PE, QC, SK), USA+(PR, VI), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Asteraceae
Ambrosia acanthicarpa CAN(AB, MB, SK), USA(AZ, CA, CO, ID, KS, MN, MO, MT, ND, NE, NM, NV, OK, OR, SD, TX, UT, WA, WY) Asteraceae
Ambrosia artemisiifolia CAN(AB, BC, MB, NB, NF, NS, NT, ON, PE, QC, SK), USA(AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Asteraceae
Ambrosia artemisiifolia var. elatior CAN(AB, BC, MB, NB, NF, NS, NT, ON, PE, QC, SK), USA(AR, AZ, CA, CO, CT, DE, FL, HI, IA, ID, IL, IN, KS, KY, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Asteraceae
Ambrosia artemisiifolia var. paniculata USA(AL, FL, GA, KY, LA, MA, ME, MS, NC, NH, NY, SC, TN, TX, VA, VT) Asteraceae
Ambrosia bidentata USA(AL, AR, CT, GA, IA, IL, IN, KS, KY, LA, MD, MN, MO, MS, NC, NJ, NY, OH, OK, SC, TN, TX, VA, WV) Asteraceae
Ambrosia cheiranthifolia USA(TX) Asteraceae
Ambrosia confertiflora USA+(PR), USA(AZ, CA, CO, KS, NM, NV, OK, TN, TX, UT) Asteraceae
Ambrosia grayi USA(CO, KS, NE, NM, OK, TX) Asteraceae
Ambrosia psilostachya CAN(AB, BC, MB, NS, ON, PE, QC, SK), USA(AL, AR, AZ, CA, CO, CT, FL, GA, IA, ID, IL, IN, KS, LA, MA, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, SC, SD, TN, TX, UT, VT, WA, WI, WY) Asteraceae
Ambrosia tomentosa USA(AZ, CO, IA, ID, IL, KS, MO, MT, ND, NE, NM, SD, TX, UT, WI, WY) Asteraceae
Ambrosia trifida CAN(AB, MB, NB, NS, ON, PE, QC, SK), USA(AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Asteraceae
Ambrosia trifida var. texana USA(AZ, IL, KS, LA, MA, MO, MS, NM, OK, TX) Asteraceae
Ambrosia trifida var. trifida CAN(AB, MB, NB, NS, ON, PE, QC, SK), USA(AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Asteraceae
Amelanchier CAN(AB, BC, LB, MB, NB, NF, NS, NT, ON, PE, QC, SK, YT), FRA(SB), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Rosaceae
Amelanchier arborea CAN(NB, NS, ON, QC), USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, NE, NH, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA, VT, WI, WV) Rosaceae
Amelanchier arborea var. arborea CAN(NB, NS, ON, QC), USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, NE, NH, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA, VT, WI, WV) Rosaceae
Amelanchier utahensis USA(AZ, CA, CO, ID, MT, NM, NV, OR, TX, UT, WA, WY) Rosaceae
Amelanchier utahensis var. utahensis USA(AZ, CA, CO, ID, MT, NM, NV, OR, TX, UT, WA, WY) Rosaceae
Ammannia CAN(BC, ON), USA+(PR, VI), USA(AL, AR, AZ, CA, CO, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MD, MI, MN, MO, MS, MT, NC, ND, NE, NJ, NM, NV, OH, OK, OR, PA, PW, SC, SD, TN, TX, UT, VA, WA, WI, WV, WY) Lythraceae
Ammannia auriculata USA+(PR), USA(AZ, KS, LA, MS, NE, NM, OK, SD, TX) Lythraceae
Ammannia coccinea USA+(PR, VI), USA(AL, AR, AZ, CA, DC, DE, FL, GA, HI, IA, IL, IN, KS, KY, LA, MD, MN, MO, MS, NC, ND, NE, NJ, NM, OH, OK, PA, SC, SD, TN, TX, VA, WV) Lythraceae
Ammannia latifolia USA+(PR, VI), USA(FL, GA, LA, MD, MS, NC, NJ, SC, TX, VA) Lythraceae
Ammannia robusta CAN(BC, ON), USA(AR, AZ, CA, CO, IA, ID, IL, IN, KS, KY, LA, MI, MN, MO, MT, ND, NE, NJ, NV, OH, OK, OR, SD, TN, TX, UT, WA, WI, WY) Lythraceae
Ammi USA(AL, AZ, CA, FL, GA, LA, MO, MS, NC, OR, PA, SC, SD, TX) Apiaceae
Ammi majus USA(AL, AZ, CA, FL, GA, LA, MO, MS, OR, PA, SC, SD, TX) Apiaceae
Ammi visnaga USA(AL, CA, FL, NC, OR, PA, TX) Apiaceae
Ammocodon USA(AZ, NM, TX) Nyctaginaceae
Ammocodon chenopodioides USA(AZ, NM, TX) Nyctaginaceae
Ammoselinum USA(AR, AZ, CA, KS, LA, MO, MS, NC, NM, OK, TN, TX) Apiaceae
Ammoselinum butleri USA(AR, KS, LA, MO, MS, NC, OK, TN, TX) Apiaceae
Ammoselinum popei USA(KS, NM, OK, TN, TX) Apiaceae
Amoreuxia USA(AZ, NM, TX) Bixaceae
Amoreuxia wrightii USA(TX) Bixaceae
Amorpha CAN(MB, NB, ON, QC), USA(AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Fabaceae
Amorpha canescens CAN(MB, ON), USA(AR, CO, IA, IL, IN, KS, LA, MI, MN, MO, MT, ND, NE, NM, OK, SD, TX, WI, WY) Fabaceae
Amorpha fruticosa CAN(MB, NB, ON, QC), USA(AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NM, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Fabaceae
Amorpha laevigata USA(LA, OK, TX) Fabaceae
Amorpha paniculata USA(AR, LA, OK, TX) Fabaceae
Amorpha roemeriana USA(TX) Fabaceae
Ampelopsis USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, MI, MO, MS, NC, NE, NH, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA, WI, WV) Vitaceae
Ampelopsis cordata USA(AL, AR, CT, DE, FL, GA, IA, IL, IN, KS, KY, LA, MD, MO, MS, NC, NE, OH, OK, SC, TN, TX, VA, WV) Vitaceae
Amphiachyris USA(AL, AR, IA, IL, IN, KS, KY, LA, MO, MS, NE, NM, OH, OK, PA, SC, TN, TX, VA) Asteraceae
Amphiachyris amoena USA(TX) Asteraceae
Amphiachyris dracunculoides USA(AL, AR, IA, IL, IN, KS, KY, LA, MO, MS, NE, NM, OH, OK, PA, SC, TN, TX, VA) Asteraceae
Amphicarpaea CAN(MB, NB, NS, ON, QC), USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WI, WV, WY) Fabaceae
Amphicarpaea bracteata CAN(MB, NB, NS, ON, QC), USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WI, WV, WY) Fabaceae
Amphicarpaea bracteata var. bracteata CAN(NB, NS, ON, QC), USA(AL, AR, CT, DC, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, NC, ND, NH, NJ, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WI, WV) Fabaceae
Amphicarpaea bracteata var. comosa CAN(MB, ON, QC), USA(AR, CT, DE, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA, VT, WI, WV) Fabaceae
Amsinckia CAN(AB, BC, MB, SK, YT), USA(AK, AZ, CA, CO, CT, HI, ID, IL, MA, ME, MO, MS, MT, NC, ND, NE, NH, NM, NV, NY, OH, OK, OR, PA, SC, TX, UT, VA, WA, WI, WY) Boraginaceae
Amsinckia lycopsoides CAN(BC), USA(AK, CA, CO, CT, ID, IL, MA, MO, MS, MT, ND, NE, NH, NY, OH, OK, OR, PA, TX, UT, WA, WI, WY) Boraginaceae
Amsinckia menziesii CAN(AB, BC, MB, SK, YT), USA(AK, AZ, CA, CO, CT, HI, ID, IL, MA, ME, MO, MT, NC, ND, NE, NH, NV, NY, OR, PA, SC, TX, UT, VA, WA, WY) Boraginaceae
Amsinckia menziesii var. intermedia CAN(AB, BC, MB, SK, YT), USA(AK, AZ, CA, CT, HI, ID, IL, MA, ME, MO, MT, ND, NE, NH, NV, NY, OR, PA, TX, UT, VA, WA, WY) Boraginaceae
Amsinckia menziesii var. menziesii CAN(BC), USA(CA, CO, CT, ID, MA, NC, NV, OR, SC, TX, UT, WA) Boraginaceae
Amsonia USA(AL, AR, AZ, CA, CO, CT, DE, FL, GA, IL, IN, KS, KY, LA, MA, MD, MO, MS, NC, NJ, NM, NV, NY, OH, OK, PA, SC, TN, TX, UT, VA) Apocynaceae
Amsonia ciliata USA(AL, AR, FL, GA, MO, NC, OK, SC, TX) Apocynaceae
Amsonia ciliata var. ciliata USA(AL, AR, FL, GA, NC, SC, TX) Apocynaceae
Amsonia ciliata var. tenuifolia USA(AL, AR, FL, GA, MO, NC, OK, SC, TX) Apocynaceae
Amsonia ciliata var. texana USA(OK, TX) Apocynaceae
Amsonia illustris USA(AR, KS, MO, OK, TX) Apocynaceae
Amsonia longiflora USA(AZ, NM, TX) Apocynaceae
Amsonia longiflora var. longiflora USA(AZ, NM, TX) Apocynaceae
Amsonia longiflora var. salpignantha USA(NM, TX) Apocynaceae
Amsonia palmeri USA(AZ, NM, TX) Apocynaceae
Amsonia repens USA(LA, TX) Apocynaceae
Amsonia tabernaemontana USA(AL, AR, CT, DE, FL, GA, IL, IN, KS, KY, LA, MA, MD, MO, MS, NC, NJ, NY, OH, OK, PA, SC, TN, TX, VA) Apocynaceae
Amsonia tabernaemontana var. salicifolia USA(AL, AR, GA, IL, IN, KS, KY, LA, MO, MS, NC, OH, OK, SC, TN, TX, VA) Apocynaceae
Amsonia tabernaemontana var. tabernaemontana USA(AL, AR, DE, FL, GA, IL, KS, KY, LA, MA, MD, MO, MS, NC, NJ, NY, OK, PA, SC, TN, TX, VA) Apocynaceae
Amsonia tharpii USA(NM, TX) Apocynaceae
Amsonia tomentosa USA(AZ, CA, NM, NV, TX, UT) Apocynaceae
Amsonia tomentosa var. stenophylla USA(AZ, NM, TX, UT) Apocynaceae
Amyris USA+(PR, VI), USA(FL, NAV, TX) Rutaceae
Amyris madrensis USA(TX) Rutaceae
Amyris texana USA(TX) Rutaceae
Anagallis CAN(AB, BC, NB, NF, NS, ON, PE, QC, SK), DEN(GL), FRA(SB), USA+(PR) Primulaceae
Anagallis arvensis CAN(AB, BC, NB, NF, NS, ON, PE, QC, SK), DEN(GL), USA+(PR), USA(AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UM, UT, VA, VT, WA, WI, WV) Primulaceae
Anagallis arvensis ssp. arvensis CAN(AB, BC, NB, NF, NS, ON, PE, QC, SK), DEN(GL), USA+(PR), USA(AL, AR, AZ, CA, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV) Primulaceae
Anagallis minima CAN(AB, BC, NS, SK), USA(AL, AR, AZ, CA, CO, DE, FL, GA, ID, IL, IN, KS, KY, LA, MD, MN, MO, MS, MT, ND, NE, NM, NY, OH, OK, OR, SC, SD, TN, TX, VA, WA, WV, WY) Primulaceae
Anaphalis CAN(AB, BC, LB, MB, NB, NF, NS, NT, ON, PE, QC, SK, YT), FRA(SB), USA(AK, AZ, CA, CO, CT, DE, IA, ID, IL, IN, KS, KY, MA, MD, ME, MI, MN, MO, MT, NC, NE, NH, NJ, NM, NV, NY, OH, OR, PA, RI, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Asteraceae
Anaphalis margaritacea CAN(AB, BC, LB, MB, NB, NF, NS, NT, ON, PE, QC, SK, YT), FRA(SB), USA(AK, AZ, CA, CO, CT, DE, IA, ID, IL, IN, KS, KY, MA, MD, ME, MI, MN, MO, MT, NC, NE, NH, NJ, NM, NV, NY, OH, OR, PA, RI, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Asteraceae
Anchusa CAN(AB, BC, MB, NB, NS, ON, PE, QC, SK), USA(CA, CO, CT, DC, IA, ID, IL, MA, MD, ME, MI, MN, MT, NC, ND, NH, NJ, NY, OH, OR, PA, RI, SD, TN, TX, UT, VA, WA, WI, WY) Boraginaceae
Anchusa azurea CAN(BC), USA(CA, CO, CT, IA, ID, MA, MD, MI, MT, NH, NY, OH, OR, PA, TX, UT, WA) Boraginaceae
Ancistrocactus USA(TX) Cactaceae
Ancistrocactus brevihamatus USA(TX) Cactaceae
Ancistrocactus brevihamatus var. brevihamatus USA(TX) Cactaceae
Ancistrocactus brevihamatus var. pallidus USA(TX) Cactaceae
Ancistrocactus scheeri USA(TX) Cactaceae
Ancistrocactus tobuschii USA(TX) Cactaceae
Andropogon CAN(MB, ON, QC, SK), USA+(PR, VI), USA(AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NAV, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, PA, RI, SC, SD, TN, TX, UM, UT, VA, VT, WI, WV, WY) Poaceae
Andropogon capillipes USA(AL, FL, GA, LA, MS, NC, NJ, SC, TX, VA) Poaceae
Andropogon gerardii CAN(MB, ON, QC, SK), USA(AL, AR, AZ, CO, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NY, OH, OK, PA, RI, SC, SD, TN, TX, UT, VA, VT, WI, WV, WY) Poaceae
Andropogon glaucopsis USA(AL, FL, GA, LA, MD, MS, NC, SC, TX, VA) Poaceae
Andropogon glomeratus USA+(PR, VI), USA(AL, AR, AZ, CA, DC, DE, FL, GA, HI, IL, KY, LA, MA, MD, MS, NAV, NC, NJ, NM, NV, NY, OH, OK, PA, RI, SC, TN, TX, UT, VA, WV) Poaceae
Andropogon glomeratus var. hirsutior USA(AL, AR, FL, GA, KY, LA, MD, MS, NC, NJ, OK, SC, TN, TX, VA) Poaceae
Andropogon glomeratus var. pumilus USA+(PR, VI), USA(AL, AR, AZ, CA, FL, GA, LA, MS, NC, NM, NV, OK, SC, TX, UT, VA) Poaceae
Andropogon gyrans USA(AL, AR, DC, DE, FL, GA, IL, IN, KY, LA, MD, MO, MS, NC, NJ, OH, OK, PA, SC, TN, TX, VA, WV) Poaceae
Andropogon gyrans var. gyrans USA(AL, AR, DC, DE, FL, GA, IL, IN, KY, LA, MD, MO, MS, NC, NJ, OH, OK, PA, SC, TN, TX, VA, WV) Poaceae
Andropogon gyrans var. stenophyllus USA(AL, FL, GA, LA, MS, NC, SC, TX, VA) Poaceae
Andropogon hallii CAN(MB, SK), USA(AZ, CO, IA, IL, IN, KS, MN, MT, ND, NE, NM, OK, SD, TX, UT, WY) Poaceae
Andropogon ternarius USA(AL, AR, DC, DE, FL, GA, IL, IN, KS, KY, LA, MD, MO, MS, NC, NJ, OK, SC, TN, TX, VA) Poaceae
Andropogon ternarius var. ternarius USA(AL, AR, DC, DE, FL, GA, IL, IN, KS, KY, LA, MD, MO, MS, NC, NJ, OK, SC, TN, TX, VA) Poaceae
Andropogon virginicus CAN(ON), USA+(PR), USA(AL, AR, CA, CT, DC, DE, FL, GA, HI, IA, IL, IN, KS, KY, LA, MA, MD, MI, MO, MS, NC, NJ, NY, OH, OK, PA, RI, SC, TN, TX, UM, VA, WV) Poaceae
Andropogon virginicus var. virginicus CAN(ON), USA+(PR), USA(AL, AR, CA, CT, DC, DE, FL, GA, HI, IA, IL, IN, KS, KY, LA, MA, MD, MI, MO, MS, NC, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA, WV) Poaceae
Androsace CAN(AB, BC, MB, NF, NT, NU, ON, QC, SK, YT), DEN(GL), USA(AK, AR, AZ, CA, CO, IA, ID, IL, IN, KS, MA, MI, MN, MO, MT, ND, NE, NM, NV, NY, OH, OK, OR, SD, TX, UT, WA, WI, WY) Primulaceae
Androsace occidentalis CAN(AB, BC, MB, ON, SK), USA(AR, AZ, CA, CO, IA, ID, IL, IN, KS, MA, MI, MN, MO, MT, ND, NE, NM, OH, OK, SD, TX, UT, WI, WY) Primulaceae
Androsace septentrionalis CAN(AB, BC, MB, NF, NT, NU, ON, QC, SK, YT), DEN(GL), USA(AK, AZ, CA, CO, ID, MN, MT, ND, NM, NV, OR, SD, TX, UT, WA, WY) Primulaceae
Androsace septentrionalis ssp. glandulosa USA(AZ, CO, NM, TX) Primulaceae
Androstephium USA(AZ, CA, CO, KS, NM, NV, OK, TX, UT, WY) Liliaceae
Androstephium coeruleum USA(KS, OK, TX) Liliaceae
Anemia USA+(PR), USA(FL, TX) Anemiaceae
Anemia mexicana USA(TX) Anemiaceae
Anemone CAN(AB, BC, LB, MB, NB, NF, NS, NT, NU, ON, PE, QC, SK, YT), DEN(GL), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Ranunculaceae
Anemone berlandieri USA(AL, AR, FL, GA, KS, LA, MS, NC, OK, SC, TX, VA) Ranunculaceae
Anemone caroliniana USA(AL, AR, DC, GA, IA, IL, IN, KS, LA, MN, MO, MS, NC, NE, OK, SC, SD, TN, TX, WI) Ranunculaceae
Anemone edwardsiana USA(NM, TX) Ranunculaceae
Anemone edwardsiana var. edwardsiana USA(NM, TX) Ranunculaceae
Anemone edwardsiana var. petraea USA(TX) Ranunculaceae
Anemone tuberosa USA(AZ, CA, NM, NV, TX, UT) Ranunculaceae
Anemone tuberosa var. texana USA(NM, TX) Ranunculaceae
Anemone tuberosa var. tuberosa USA(AZ, CA, NM, NV, TX, UT) Ranunculaceae
Anemopsis USA(AZ, CA, CO, KS, NE, NM, NV, OK, OR, TX, UT) Saururaceae
Anemopsis californica USA(AZ, CA, CO, KS, NE, NM, NV, OK, OR, TX, UT) Saururaceae
Anethum CAN(AB, BC, MB, ON, QC, SK), USA+(PR, VI), USA(AR, AZ, CA, CO, CT, DE, HI, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MT, NC, ND, NE, NJ, NY, OH, OK, OR, PA, PW, RI, SD, TX, UM, VA, WA, WI, WV) Apiaceae
Anethum graveolens CAN(AB, BC, MB, ON, QC, SK), USA+(PR, VI), USA(AR, AZ, CA, CO, CT, DE, HI, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MT, NC, ND, NE, NJ, NY, OH, OK, OR, PA, PW, RI, SD, TX, UM, VA, WA, WI, WV) Apiaceae
Anisacanthus USA(AZ, NM, TX) Acanthaceae
Anisacanthus linearis USA(TX) Acanthaceae
Anisacanthus puberulus USA(TX) Acanthaceae
Anisacanthus quadrifidus USA(TX) Acanthaceae
Anisacanthus quadrifidus var. wrightii USA(TX) Acanthaceae
Anoda USA+(PR), USA(AR, AZ, CA, CO, CT, DC, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, MO, MS, NC, NJ, NM, NY, OH, PA, SC, TN, TX, VA, WV) Malvaceae
Anoda crenatiflora USA(AZ, TX) Malvaceae
Anoda cristata USA+(PR), USA(AR, AZ, CA, CO, CT, DC, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, MO, MS, NC, NJ, NM, NY, OH, PA, SC, TN, TX, VA, WV) Malvaceae
Anoda lanceolata USA(AZ, NM, TX) Malvaceae
Anoda pentaschista USA(AZ, CA, NM, TX) Malvaceae
Anredera USA+(PR, VI), USA(CA, DC, FL, HI, LA, TX) Basellaceae
Anredera cordifolia USA+(PR), USA(CA, DC, FL, HI, LA, TX) Basellaceae
Anredera vesicaria USA+(PR, VI), USA(FL, TX) Basellaceae
Antennaria CAN(AB, BC, LB, MB, NB, NF, NS, NT, NU, ON, PE, QC, SK, YT), DEN(GL), FRA(SB), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Asteraceae
Antennaria marginata USA(AZ, CA, CO, NM, TX, UT) Asteraceae
Antennaria parlinii CAN(MB, NB, NS, ON, QC), USA(AL, AR, CT, DC, DE, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NM, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WI, WV) Asteraceae
Antennaria parlinii ssp. fallax CAN(MB, NB, ON, QC), USA(AL, AR, CT, DC, DE, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NM, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WI, WV) Asteraceae
Antennaria parvifolia CAN(AB, BC, MB, ON, SK), USA(AZ, CA, CO, ID, KS, MI, MN, MT, ND, NE, NM, NV, OK, OR, SD, TX, UT, WA, WY) Asteraceae
Antennaria plantaginifolia USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KY, LA, MA, MD, ME, MN, MO, MS, NC, NH, NJ, NY, OH, PA, RI, SC, TN, TX, VA, VT, WI, WV) Asteraceae
Anthaenantia USA(AL, AR, FL, GA, LA, MS, NC, SC, TX) Poaceae
Anthaenantia rufa USA(AL, AR, FL, GA, LA, MS, NC, SC, TX) Poaceae
Anthaenantia villosa USA(AL, FL, GA, LA, MS, NC, SC, TX) Poaceae
Anthemis CAN(AB, BC, MB, NB, NF, NS, ON, PE, QC, SK, YT), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Asteraceae
Anthemis cotula CAN(AB, BC, MB, NB, NF, NS, ON, PE, QC, SK, YT), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Asteraceae
Anthoxanthum CAN(AB, BC, LB, MB, NB, NF, NS, NT, NU, ON, PE, QC, YT), DEN(GL), FRA(SB), USA(AK, AL, AR, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, NH, NJ, NM, NY, OH, OK, OR, PA, RI, SC, TN, TX, VA, VT, WA, WI, WV) Poaceae
Anthoxanthum aristatum CAN(BC, QC), USA(AL, AR, CA, FL, IA, IL, KY, LA, MA, ME, MI, MN, MS, NC, NH, NJ, NY, OH, OK, OR, PA, SC, TN, TX, VA, WA, WV) Poaceae
Anthoxanthum odoratum CAN(BC, NB, NF, NS, ON, PE, QC), DEN(GL), FRA(SB), USA(AK, AL, AR, CA, CO, CT, DC, DE, GA, HI, ID, IL, IN, KY, LA, MA, MD, ME, MI, MO, MS, NC, NH, NJ, NM, NY, OH, OR, PA, RI, SC, TN, TX, VA, VT, WA, WI, WV) Poaceae
Anthoxanthum odoratum ssp. odoratum CAN(BC, NB, NF, NS, ON, PE, QC), DEN(GL), FRA(SB), USA(AK, AL, AR, CA, CO, CT, DC, DE, GA, HI, ID, IL, IN, KY, LA, MA, MD, ME, MI, MO, MS, NC, NH, NJ, NM, NY, OH, OR, PA, RI, SC, TN, TX, VA, VT, WA, WI, WV) Poaceae
Antigonon USA+(PR, VI), USA(AL, FL, GA, HI, LA, MS, PW, SC, TX, UM) Polygonaceae
Antigonon leptopus USA+(PR, VI), USA(AL, FL, GA, HI, LA, MS, PW, SC, TX, UM) Polygonaceae
Antiphytum USA(NM, TX) Boraginaceae
Antiphytum floribundum USA(NM, TX) Boraginaceae
Antiphytum heliotropioides USA(TX) Boraginaceae
Anulocaulis USA(AZ, CA, NM, NV, TX) Nyctaginaceae
Anulocaulis eriosolenus USA(TX) Nyctaginaceae
Anulocaulis leiosolenus USA(AZ, NM, NV, TX) Nyctaginaceae
Anulocaulis leiosolenus var. gypsogenus USA(NM, TX) Nyctaginaceae
Anulocaulis leiosolenus var. lasianthus USA(TX) Nyctaginaceae
Anulocaulis leiosolenus var. leiosolenus USA(AZ, NM, NV, TX) Nyctaginaceae
Anulocaulis reflexus USA(TX) Nyctaginaceae
Apera CAN(BC, ON), USA(AZ, CA, CO, CT, DC, DE, HI, ID, IL, IN, KY, MA, MD, ME, MI, MO, MT, NJ, NM, NV, NY, OH, OR, PA, TX, UT, VT, WA, WI, WY) Poaceae
Apera spica-venti CAN(ON), USA(CA, CT, DC, DE, ID, KY, MA, MD, ME, MI, MO, NJ, NY, OH, OR, PA, TX, VT, WA) Poaceae
Aphanes CAN(BC, NS), USA(AL, AR, CA, DC, DE, FL, GA, ID, KY, LA, MD, MO, MS, NC, NJ, NY, OK, OR, SC, TN, TX, VA, WA) Rosaceae
Aphanes microcarpa CAN(BC), USA(AL, AR, DC, DE, FL, GA, KY, LA, MD, MO, MS, NC, NY, OK, SC, TN, TX, VA) Rosaceae
Aphanostephus USA(AR, AZ, FL, KS, LA, NM, OK, TX) Asteraceae
Aphanostephus pilosus USA(NM, OK, TX) Asteraceae
Aphanostephus ramosissimus USA(AZ, NM, OK, TX) Asteraceae
Aphanostephus ramosissimus var. humilis USA(AZ, NM, TX) Asteraceae
Aphanostephus ramosissimus var. ramosissimus USA(NM, OK, TX) Asteraceae
Aphanostephus riddellii USA(NM, TX) Asteraceae
Aphanostephus skirrhobasis USA(AR, FL, KS, LA, NM, OK, TX) Asteraceae
Aphanostephus skirrhobasis var. kidderi USA(TX) Asteraceae
Aphanostephus skirrhobasis var. skirrhobasis USA(AR, KS, LA, NM, OK, TX) Asteraceae
Aphanostephus skirrhobasis var. thalassius USA(FL, LA, TX) Asteraceae
Apios CAN(NB, NS, ON, PE, QC), USA(AL, AR, CO, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WI, WV) Fabaceae
Apios americana CAN(NB, NS, ON, PE, QC), USA(AL, AR, CO, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WI, WV) Fabaceae
Apium CAN(NS), USA(AZ, CA, CT, FL, ID, IL, LA, MA, MO, MS, NC, NJ, NM, NV, NY, OH, OK, OR, PA, SC, SD, TN, TX, UT, WA, WV) Apiaceae
Apium graveolens CAN(NS), USA(AZ, CA, CT, FL, ID, IL, LA, MA, MO, MS, NC, NJ, NM, NV, NY, OH, OK, OR, PA, SC, SD, TN, TX, UT, WA, WV) Apiaceae
Apium graveolens var. dulce CAN(NS), USA(AZ, CA, CT, FL, ID, IL, LA, MA, MO, MS, NC, NJ, NM, NV, NY, OH, OK, OR, PA, SC, SD, TN, TX, UT, WA, WV) Apiaceae
Apocynum CAN(AB, BC, MB, NB, NF, NS, NT, ON, PE, QC, SK, YT), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Apocynaceae
Apocynum ×floribundum CAN(AB, BC, MB, NB, NF, NS, ON, QC, SK), USA(AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, MA, MD, ME, MI, MN, MO, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OR, PA, RI, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Apocynaceae
Apocynum androsaemifolium CAN(AB, BC, MB, NB, NF, NS, NT, ON, PE, QC, SK, YT), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, GA, IA, ID, IL, IN, KY, MA, MD, ME, MI, MN, MO, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Apocynaceae
Apocynum cannabinum CAN(AB, BC, MB, NB, NF, NS, NT, ON, QC, SK), USA(AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Apocynaceae
Apodanthera USA(AZ, NM, TX) Cucurbitaceae
Apodanthera undulata USA(AZ, NM, TX) Cucurbitaceae
Apteria USA+(PR), USA(AL, FL, GA, LA, MS, TX) Burmanniaceae
Apteria aphylla USA+(PR), USA(AL, FL, GA, LA, MS, TX) Burmanniaceae
Aquilegia CAN(AB, BC, MB, NB, NF, NS, NT, NU, ON, PE, QC, SK, YT), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Ranunculaceae
Aquilegia canadensis CAN(MB, NB, ON, QC, SK), USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, MA, MD, ME, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WI, WV) Ranunculaceae
Aquilegia chrysantha USA(AZ, CO, NM, TX, UT) Ranunculaceae
Aquilegia chrysantha var. chaplinei USA(NM, TX) Ranunculaceae
Aquilegia chrysantha var. chrysantha USA(AZ, NM, TX, UT) Ranunculaceae
Aquilegia chrysantha var. hinckleyana USA(TX) Ranunculaceae
Aquilegia longissima USA(AZ, TX) Ranunculaceae
Arabidopsis CAN(BC, LB, MB, NF, NT, NU, ON, QC, SK), DEN(GL), FRA(SB), USA(AL, AR, CA, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, NE, NH, NJ, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV) Brassicaceae
Arabidopsis thaliana CAN(BC, ON, QC), FRA(SB), USA(AL, AR, CA, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, NE, NH, NJ, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV) Brassicaceae
Arabis CAN(AB, BC, LB, MB, NB, NF, NS, NT, NU, ON, QC, SK, YT), DEN(GL), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Brassicaceae
Arabis canadensis CAN(ON, QC), USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WI, WV) Brassicaceae
Arabis fendleri USA(AZ, CO, NM, NV, OK, TX, UT, WY) Brassicaceae
Arabis fendleri var. fendleri USA(AZ, CO, NM, NV, OK, TX, UT) Brassicaceae
Arabis perennans USA(AZ, CA, CO, NM, NV, TX, UT, WY) Brassicaceae
Arabis petiolaris USA(TX) Brassicaceae
Arachis USA+(PR, VI), USA(AL, CT, DC, DE, FL, GA, KS, KY, LA, MA, MO, MS, NC, NJ, PA, PW, SC, TN, TX, UT, VA, WV) Fabaceae
Arachis hypogaea USA+(PR, VI), USA(AL, CT, DC, DE, FL, GA, KS, KY, LA, MA, MO, MS, NC, NJ, PA, PW, SC, TN, TX, UT, VA, WV) Fabaceae
Aralia CAN(AB, BC, LB, MB, NB, NF, NS, NT, ON, PE, QC, SK, YT), FRA(SB), USA(AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Araliaceae
Aralia racemosa CAN(MB, NB, NS, ON, PE, QC), USA(AL, AR, AZ, CO, CT, DC, DE, GA, IA, IL, IN, KS, KY, MA, MD, ME, MI, MN, MO, MS, NC, NE, NH, NJ, NM, NY, OH, PA, RI, SC, SD, TN, TX, UT, VA, VT, WI, WV) Araliaceae
Aralia racemosa ssp. bicrenata USA(AZ, CO, NM, TX, UT) Araliaceae
Aralia spinosa USA(AL, AR, CT, DC, DE, FL, GA, IL, IN, KY, LA, MA, MD, ME, MO, MS, NC, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA, WV) Araliaceae
Arbutus CAN(BC), USA(AZ, CA, NM, OR, TX, WA) Ericaceae
Arbutus xalapensis USA(NM, TX) Ericaceae
Arceuthobium CAN(AB, BC, MB, NB, NF, NS, ON, PE, QC, SK), USA(AK, AZ, CA, CO, CT, ID, MA, ME, MI, MN, MT, NH, NJ, NM, NV, NY, OR, PA, RI, TX, UT, VT, WA, WI, WY) Viscaceae
Arceuthobium divaricatum USA(AZ, CA, CO, NM, NV, TX, UT) Viscaceae
Arceuthobium douglasii CAN(BC), USA(AZ, CA, CO, ID, MT, NM, NV, OR, TX, UT, WA, WY) Viscaceae
Arceuthobium vaginatum USA(AZ, CO, NM, TX, UT) Viscaceae
Arceuthobium vaginatum ssp. cryptopodum USA(AZ, CO, NM, TX, UT) Viscaceae
Arctium CAN(AB, BC, MB, NB, NF, NS, ON, PE, QC, SK), DEN(GL), FRA(SB), USA(AL, AR, AZ, CA, CO, CT, DC, DE, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Asteraceae
Arctium minus CAN(AB, BC, MB, NB, NF, NS, ON, PE, QC, SK), DEN(GL), FRA(SB), USA(AL, AR, AZ, CA, CO, CT, DC, DE, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Asteraceae
Arctostaphylos CAN(AB, BC, LB, MB, NB, NF, NS, NT, NU, ON, PE, QC, SK, YT), DEN(GL), FRA(SB), USA(AK, AZ, CA, CO, CT, DE, IA, ID, IL, IN, MA, MD, ME, MI, MN, MT, ND, NH, NJ, NM, NV, NY, OH, OR, PA, RI, SD, TX, UT, VA, VT, WA, WI, WV, WY) Ericaceae
Arctostaphylos pungens USA(AZ, CA, NM, NV, TX, UT) Ericaceae
Arenaria CAN(AB, BC, LB, MB, NB, NF, NS, NT, NU, ON, PE, QC, SK, YT), DEN(GL), FRA(SB), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Caryophyllaceae
Arenaria benthamii USA(LA, NM, OK, TX) Caryophyllaceae
Arenaria fendleri USA(AZ, CO, NM, TX, UT, WY) Caryophyllaceae
Arenaria fendleri var. fendleri USA(AZ, CO, NM, TX, UT, WY) Caryophyllaceae
Arenaria lanuginosa USA(AL, AR, AZ, CA, CO, FL, GA, LA, MS, NC, NM, SC, TN, TX, UT, VA) Caryophyllaceae
Arenaria lanuginosa ssp. lanuginosa USA(AL, AR, FL, GA, LA, MS, NC, SC, TN, TX, VA) Caryophyllaceae
Arenaria lanuginosa ssp. lanuginosa var. lanuginosa USA(AL, AR, FL, GA, LA, MS, NC, SC, TN, TX, VA) Caryophyllaceae
Arenaria lanuginosa ssp. saxosa USA(AZ, CA, CO, NM, TX, UT) Caryophyllaceae
Arenaria livermorensis USA(TX) Caryophyllaceae
Arenaria ludens USA(TX) Caryophyllaceae
Arenaria serpyllifolia CAN(AB, BC, MB, NB, NS, ON, PE, QC, SK), FRA(SB), USA(AL, AR, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Caryophyllaceae
Argemone CAN(MB, ON), USA+(PR, VI), USA(AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, MI, MO, MS, MT, NC, ND, NE, NJ, NM, NV, NY, OH, OK, OR, PA, SC, SD, TN, TX, UT, VA, VT, WA, WI, WY) Papaveraceae
Argemone aenea USA(NM, TX) Papaveraceae
Argemone albiflora USA(AL, AR, CT, FL, GA, IA, IL, KY, LA, MA, MD, MI, MO, MS, NC, NY, OH, SC, TN, TX, WI) Papaveraceae
Argemone albiflora ssp. texana USA(AR, LA, MO, TX) Papaveraceae
Argemone aurantiaca USA(TX) Papaveraceae
Argemone chisosensis USA(TX) Papaveraceae
Argemone mexicana CAN(MB, ON), USA+(PR, VI), USA(AL, AR, CT, DC, DE, FL, GA, HI, IA, IL, IN, KS, LA, MA, MD, MI, MO, MS, NC, NE, NJ, NY, OH, PA, SC, TN, TX, VA, VT) Papaveraceae
Argemone polyanthemos USA(CO, IA, ID, IL, IN, KS, MT, ND, NE, NM, OK, SD, TX, UT, WA, WY) Papaveraceae
Argemone sanguinea USA(TX) Papaveraceae
Argemone squarrosa USA(CO, KS, NM, OK, TX) Papaveraceae
Argemone squarrosa ssp. glabrata USA(NM, TX) Papaveraceae
Argyrochosma USA(AR, AZ, CA, CO, IL, KS, KY, MO, NE, NM, NV, OK, TX, UT, WY) Pteridaceae
Argyrochosma dealbata USA(AR, IL, KS, KY, MO, NE, OK, TX) Pteridaceae
Argyrochosma limitanea USA(AZ, CA, NM, TX, UT) Pteridaceae
Argyrochosma limitanea ssp. mexicana USA(AZ, NM, TX) Pteridaceae
Argyrochosma microphylla USA(NM, TX) Pteridaceae
Argythamnia USA+(PR, VI), USA(AZ, CA, CO, FL, KS, NM, NV, OK, TX) Euphorbiaceae
Argythamnia aphoroides USA(TX) Euphorbiaceae
Argythamnia argyraea USA(TX) Euphorbiaceae
Argythamnia astroplethos USA(TX) Euphorbiaceae
Argythamnia humilis USA(CO, KS, NM, OK, TX) Euphorbiaceae
Argythamnia humilis var. humilis USA(CO, KS, NM, OK, TX) Euphorbiaceae
Argythamnia humilis var. laevis USA(NM, OK, TX) Euphorbiaceae
Argythamnia mercurialina USA(AZ, CO, KS, NM, OK, TX) Euphorbiaceae
Argythamnia mercurialina var. mercurialina USA(AZ, CO, KS, NM, OK, TX) Euphorbiaceae
Argythamnia mercurialina var. pilosissima USA(TX) Euphorbiaceae
Argythamnia neomexicana USA(AZ, CA, NM, NV, TX) Euphorbiaceae
Argythamnia simulans USA(TX) Euphorbiaceae
Ariocarpus USA(TX) Cactaceae
Ariocarpus fissuratus USA(TX) Cactaceae
Arisaema CAN(MB, NB, NS, ON, PE, QC), USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WI, WV) Araceae
Arisaema dracontium CAN(ON, QC), USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, MI, MN, MO, MS, NC, NE, NH, NJ, NY, OH, OK, PA, SC, TN, TX, VA, VT, WI, WV) Araceae
Arisaema triphyllum CAN(MB, NB, NS, ON, PE, QC), USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WI, WV) Araceae
Arisaema triphyllum ssp. pusillum CAN(NB, ON, QC), USA(AL, AR, CT, DE, FL, GA, IA, IL, IN, KY, LA, MA, MD, MI, MN, MS, NC, NJ, NY, OH, PA, RI, SC, TN, TX, VA, VT, WI, WV) Araceae
Arisaema triphyllum ssp. quinatum USA(AL, AR, FL, GA, KY, LA, MS, NC, SC, TN, TX) Araceae
Arisaema triphyllum ssp. triphyllum CAN(MB, NB, NS, ON, PE, QC), USA(AL, AR, CT, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WI, WV) Araceae
Aristida CAN(AB, BC, MB, ON, QC, SK), USA+(PR, VI), USA(AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Poaceae
Aristida adscensionis USA+(PR, VI), USA(AZ, CA, CO, HI, KS, MD, MO, NE, NM, NV, NY, OK, SC, TX, UT) Poaceae
Aristida arizonica USA(AZ, CO, NM, NV, OK, TX, UT) Poaceae
Aristida basiramea CAN(ON, QC), USA(AL, CO, FL, IA, IL, IN, KS, MA, ME, MI, MN, MO, MS, ND, NE, NH, NY, OK, PA, SC, TN, TX, VT, WI, WV) Poaceae
Aristida desmantha USA(AR, IL, KS, LA, MO, NE, OK, TX, WI) Poaceae
Aristida dichotoma CAN(ON), USA(AL, AR, CA, CO, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, NE, NH, NJ, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WI, WV, WY) Poaceae
Aristida dichotoma var. dichotoma CAN(ON), USA(AL, AR, CA, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MO, MS, NC, NH, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA, VT, WI, WV) Poaceae
Aristida divaricata USA(AZ, CA, CO, KS, NM, OK, TX) Poaceae
Aristida gypsophila USA(TX) Poaceae
Aristida havardii USA(AZ, CO, KS, NM, OK, TX) Poaceae
Aristida lanosa USA(AL, AR, DE, FL, GA, IL, LA, MD, MO, MS, NC, NJ, OK, SC, TN, TX, VA, WV) Poaceae
Aristida longespica CAN(ON), USA(AL, AR, AZ, CO, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, MI, MN, MO, MS, NC, NE, NH, NJ, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WA, WI, WV) Poaceae
Aristida longespica var. geniculata CAN(ON), USA(AL, AR, CO, CT, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, MI, MO, MS, NC, NE, NH, NJ, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WI, WV) Poaceae
Aristida longespica var. longespica CAN(ON), USA(AL, AR, AZ, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, MI, MN, MO, MS, NC, NJ, NY, OH, OK, PA, SC, TN, TX, VA, WA, WI, WV) Poaceae
Aristida oligantha CAN(BC, ON), USA(AL, AR, AZ, CA, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, NE, NH, NJ, NM, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, VA, VT, WI, WV, WY) Poaceae
Aristida palustris USA(AL, FL, GA, KY, LA, MS, NC, SC, TX, VA) Poaceae
Aristida pansa USA(AZ, NM, TX) Poaceae
Aristida purpurascens CAN(ON), USA(AL, AR, CT, DC, DE, FL, GA, IL, IN, KS, KY, LA, MA, MD, MI, MO, MS, NC, NE, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA, WI, WV) Poaceae
Aristida purpurascens var. purpurascens CAN(ON), USA(AL, AR, CT, DC, DE, FL, GA, IL, IN, KS, KY, LA, MA, MD, MI, MO, MS, NC, NE, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA, WI, WV) Poaceae
Aristida purpurascens var. virgata USA(AL, AR, DE, FL, GA, KY, LA, MD, MS, NC, NJ, NY, SC, TN, TX, VA) Poaceae
Aristida purpurea CAN(AB, BC, MB, SK), USA(AR, AZ, CA, CO, IA, ID, IL, KS, LA, MN, MT, NC, ND, NE, NM, NV, OK, OR, SC, SD, TX, UT, VT, WA, WY) Poaceae
Aristida purpurea var. fendleriana USA(AZ, CA, CO, KS, MT, ND, NE, NM, NV, OK, SD, TX, UT, WY) Poaceae
Aristida purpurea var. longiseta CAN(AB, BC, MB, SK), USA(AZ, CA, CO, IA, ID, KS, LA, MN, MT, NC, ND, NE, NM, NV, OK, OR, SC, SD, TX, UT, WA, WY) Poaceae
Aristida purpurea var. nealleyi USA(AZ, CA, CO, IL, KS, NM, NV, OK, TX, UT, VT) Poaceae
Aristida purpurea var. perplexa USA(AZ, NM, TX) Poaceae
Aristida purpurea var. purpurea USA(AR, AZ, CA, CO, KS, LA, NM, NV, OK, TX, UT) Poaceae
Aristida purpurea var. wrightii USA(AZ, CA, CO, NM, NV, OK, TX, UT) Poaceae
Aristida ramosissima USA(AR, IA, IL, IN, KS, KY, LA, MO, MS, OH, OK, TN, TX) Poaceae
Aristida schiedeana USA(AZ, CA, NM, TX) Poaceae
Aristida schiedeana var. orcuttiana USA(AZ, CA, NM, TX) Poaceae
Aristida spiciformis USA+(PR), USA(AL, FL, GA, MS, NC, SC, TX) Poaceae
Aristida ternipes USA(AZ, CA, NM, TX) Poaceae
Aristida ternipes var. gentilis USA(AZ, CA, NM, TX) Poaceae
Aristida ternipes var. ternipes USA(AZ, NM, TX) Poaceae
Aristolochia CAN(ON, QC), USA+(PR, VI), USA(AL, AR, AZ, CA, CT, DC, DE, FL, GA, HI, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MO, MS, NC, NJ, NM, NY, OH, OK, PA, SC, TN, TX, VA, VT, WI, WV) Aristolochiaceae
Aristolochia coryi USA(TX) Aristolochiaceae
Aristolochia erecta USA(TX) Aristolochiaceae
Aristolochia pentandra USA(FL, TX) Aristolochiaceae
Aristolochia reticulata USA(AR, LA, OK, TX) Aristolochiaceae
Aristolochia serpentaria USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MD, MI, MO, MS, NC, NJ, NY, OH, OK, PA, SC, TN, TX, VA, WV) Aristolochiaceae
Aristolochia tomentosa USA(AL, AR, CT, FL, GA, IL, IN, KS, KY, LA, MA, MO, MS, NC, NY, OH, OK, SC, TN, TX, VT, WI) Aristolochiaceae
Aristolochia wrightii USA(NM, TX) Aristolochiaceae
Arnoglossum CAN(ON), USA(AL, AR, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, MI, MN, MO, MS, NC, NE, NJ, NY, OH, OK, PA, SC, SD, TN, TX, VA, WI, WV) Asteraceae
Arnoglossum ovatum USA(AL, FL, GA, LA, MS, NC, SC, TX) Asteraceae
Arnoglossum plantagineum CAN(ON), USA(AL, AR, GA, IA, IL, IN, KS, KY, LA, MI, MN, MO, MS, NE, OH, OK, SC, SD, TN, TX, WI) Asteraceae
Aronia CAN(LB, NB, NF, NS, ON, PE, QC), FRA(SB), USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, NH, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA, VT, WI, WV) Rosaceae
Aronia arbutifolia CAN(NB, NS, ON, PE, QC), USA(AL, AR, CT, DC, DE, FL, GA, KY, LA, MA, MD, ME, MS, NC, NH, NJ, NY, OK, PA, RI, SC, TN, TX, VA, WV) Rosaceae
Artemisia CAN(AB, BC, LB, MB, NB, NF, NS, NT, NU, ON, PE, QC, SK, YT), DEN(GL), FRA(SB), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, PW, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Asteraceae
Artemisia bigelovii USA(AZ, CA, CO, NM, NV, TX, UT) Asteraceae
Artemisia campestris CAN(AB, BC, LB, MB, NB, NF, NS, NT, NU, ON, QC, SK, YT), DEN(GL), USA(AK, AL, AZ, CA, CO, CT, FL, IA, ID, IL, IN, KS, MA, ME, MI, MN, MO, MS, MT, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TX, UT, VA, VT, WA, WI, WY) Asteraceae
Artemisia campestris ssp. caudata CAN(LB, MB, NB, NF, NS, NU, ON, QC, SK), DEN(GL), USA(AL, AZ, CO, CT, FL, IA, IL, IN, KS, MA, ME, MI, MN, MO, MS, MT, ND, NE, NH, NJ, NM, NY, OH, OK, PA, RI, SC, SD, TX, VA, VT, WA, WI, WY) Asteraceae
Artemisia carruthii USA(AZ, CO, IN, KS, MI, MO, NE, NM, NV, NY, OK, RI, TX, UT) Asteraceae
Artemisia dracunculus CAN(AB, BC, MB, ON, SK, YT), USA(AK, AZ, CA, CO, CT, IA, ID, IL, KS, MA, MN, MO, MT, ND, NE, NJ, NM, NV, NY, OK, OR, SD, TX, UT, WA, WI, WY) Asteraceae
Artemisia filifolia USA(AZ, CO, CT, KS, NE, NM, NV, NY, OK, SD, TX, UT, WY) Asteraceae
Artemisia frigida CAN(AB, BC, MB, NB, NS, NT, ON, PE, QC, SK, YT), USA(AK, AZ, CO, CT, IA, ID, IL, KS, MA, MI, MN, MO, MT, ND, NE, NJ, NM, NV, NY, PA, SD, TX, UT, VT, WA, WI, WY) Asteraceae
Artemisia ludoviciana CAN(AB, BC, MB, NB, NT, ON, PE, QC, SK), USA(AR, AZ, CA, CO, CT, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WY) Asteraceae
Artemisia ludoviciana ssp. albula USA(AZ, CA, CO, MS, NM, NV, NY, OH, TX, UT) Asteraceae
Artemisia ludoviciana ssp. ludoviciana CAN(AB, BC, MB, NB, NT, ON, PE, QC, SK), USA(AR, AZ, CA, CO, CT, DE, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WY) Asteraceae
Artemisia ludoviciana ssp. mexicana USA(AR, AZ, CA, CO, KS, MA, MO, NE, NJ, NM, NV, OK, TN, TX, UT) Asteraceae
Artemisia ludoviciana ssp. redolens USA(AZ, NM, TX) Asteraceae
Arthraxon USA+(PR), USA(AL, AR, DC, DE, FL, GA, HI, IL, IN, KS, KY, LA, MA, MD, MO, MS, NC, NJ, NY, OH, OK, OR, PA, SC, TN, TX, VA, WV) Poaceae
Arthraxon hispidus USA(AL, AR, DC, DE, FL, GA, HI, IL, IN, KS, KY, LA, MA, MD, MO, MS, NC, NJ, NY, OH, OK, OR, PA, SC, TN, TX, VA, WV) Poaceae
Arundinaria USA(AL, AR, DE, FL, GA, IL, IN, KS, KY, LA, MD, MO, MS, NC, NJ, NY, OH, OK, PA, SC, TN, TX, VA, WV) Poaceae
Arundinaria gigantea USA(AL, AR, DE, FL, GA, IL, IN, KS, KY, LA, MD, MO, MS, NC, NJ, NY, OH, OK, SC, TN, TX, VA, WV) Poaceae
Arundinaria tecta USA(AL, AR, FL, GA, LA, MD, MS, NC, NJ, NY, OK, PA, SC, TN, TX, VA) Poaceae
Arundo USA+(PR, VI), USA(AL, AR, AZ, CA, DE, FL, GA, HI, IL, KS, KY, LA, MD, MO, MS, NC, NM, NV, OK, PW, SC, TN, TX, UT, VA, WV) Poaceae
Arundo donax USA+(PR, VI), USA(AL, AR, AZ, CA, DE, FL, GA, HI, IL, KS, KY, LA, MD, MO, MS, NC, NM, NV, OK, PW, SC, TN, TX, UT, VA, WV) Poaceae
Asclepias CAN(AB, BC, MB, NB, NS, ON, PE, QC, SK), USA+(PR, VI), USA(AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NAV, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, PW, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Asclepiadaceae
Asclepias amplexicaulis USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, MI, MN, MO, MS, NC, NE, NH, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA, VT, WI, WV) Asclepiadaceae
Asclepias arenaria USA(CO, KS, NE, NM, OK, SD, TX, WY) Asclepiadaceae
Asclepias asperula USA(AZ, CA, CO, ID, KS, NE, NM, NV, OK, TX, UT) Asclepiadaceae
Asclepias asperula ssp. asperula USA(AZ, CA, CO, ID, NE, NM, NV, TX, UT) Asclepiadaceae
Asclepias asperula ssp. capricornu USA(AZ, KS, NE, NM, OK, TX) Asclepiadaceae
Asclepias brachystephana USA(AZ, NM, TX) Asclepiadaceae
Asclepias curassavica USA+(PR, VI), USA(CA, FL, HI, LA, PW, TN, TX) Asclepiadaceae
Asclepias emoryi USA(NM, TX) Asclepiadaceae
Asclepias engelmanniana USA(AZ, CO, IA, KS, NE, NM, OK, TX, UT, WY) Asclepiadaceae
Asclepias glaucescens USA(AZ, NM, TX) Asclepiadaceae
Asclepias incarnata CAN(MB, NB, NS, ON, PE, QC), USA(AL, AR, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, PA, RI, SC, SD, TN, TX, UT, VA, VT, WI, WV, WY) Asclepiadaceae
Asclepias incarnata ssp. incarnata CAN(MB, NB, NS, ON, PE, QC), USA(AL, AR, CO, CT, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, PA, SD, TN, TX, UT, VA, VT, WI, WV, WY) Asclepiadaceae
Asclepias incarnata ssp. pulchra USA(CT, DC, DE, FL, GA, KY, MA, MD, ME, MI, NC, NH, NJ, NY, PA, RI, SC, TN, TX, VA, VT, WV) Asclepiadaceae
Asclepias involucrata USA(AZ, CO, KS, NM, OK, TX, UT) Asclepiadaceae
Asclepias lanceolata USA(AL, DE, FL, GA, LA, MD, MS, NC, NJ, SC, TN, TX, VA) Asclepiadaceae
Asclepias latifolia USA(AZ, CA, CO, KS, NE, NM, OK, SD, TX, UT) Asclepiadaceae
Asclepias linearis USA(MD, TX) Asclepiadaceae
Asclepias longifolia USA(AL, AR, DE, FL, GA, LA, MD, MS, NC, SC, TX, VA, WV) Asclepiadaceae
Asclepias macrotis USA(AZ, CO, NM, OK, TX) Asclepiadaceae
Asclepias nummularia USA(AZ, NM, TX) Asclepiadaceae
Asclepias obovata USA(AL, AR, FL, GA, LA, MS, OK, SC, TX) Asclepiadaceae
Asclepias oenotheroides USA(AZ, CO, LA, NM, OK, TX) Asclepiadaceae
Asclepias perennis USA(AL, AR, FL, GA, IL, IN, KY, LA, MO, MS, SC, TN, TX) Asclepiadaceae
Asclepias prostrata USA(TX) Asclepiadaceae
Asclepias pumila USA(CO, IA, KS, MT, ND, NE, NM, OK, SD, TX, WY) Asclepiadaceae
Asclepias purpurascens CAN(ON), USA(AR, CT, DC, DE, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, NE, NH, NJ, NY, OH, OK, PA, RI, SD, TN, TX, VA, WI, WV) Asclepiadaceae
Asclepias quinquedentata USA(AZ, NM, TX) Asclepiadaceae
Asclepias rubra USA(AL, AR, DC, DE, FL, GA, LA, MD, MS, NC, NJ, NY, PA, SC, TX, VA) Asclepiadaceae
Asclepias scaposa USA(NM, TX) Asclepiadaceae
Asclepias speciosa CAN(AB, BC, MB, SK), USA(AZ, CA, CO, IA, ID, IL, KS, MI, MN, MT, ND, NE, NM, NV, OK, OR, SD, TX, UT, WA, WI, WY) Asclepiadaceae
Asclepias sperryi USA(TX) Asclepiadaceae
Asclepias stenophylla USA(AR, CO, IA, IL, KS, LA, MN, MO, MT, NE, OK, SD, TX, WY) Asclepiadaceae
Asclepias subverticillata USA(AZ, CO, ID, KS, MO, NE, NM, NV, OK, TX, UT, WY) Asclepiadaceae
Asclepias syriaca CAN(MB, NB, NS, ON, PE, QC, SK), USA(AL, AR, CT, DC, DE, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, VA, VT, WI, WV) Asclepiadaceae
Asclepias texana USA(TX) Asclepiadaceae
Asclepias tomentosa USA(AL, FL, GA, NC, SC, TX) Asclepiadaceae
Asclepias tuberosa CAN(ON, QC), USA(AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, NE, NH, NJ, NM, NY, OH, OK, PA, RI, SC, SD, TN, TX, UT, VA, VT, WI, WV) Asclepiadaceae
Asclepias tuberosa ssp. interior CAN(ON, QC), USA(AR, AZ, CA, CO, CT, IA, IL, IN, KS, KY, LA, MI, MN, MO, MS, NE, NM, NY, OH, OK, PA, SD, TN, TX, UT, WI, WV) Asclepiadaceae
Asclepias uncialis USA(AZ, CO, NM, NV, OK, TX, UT, WY) Asclepiadaceae
Asclepias uncialis ssp. uncialis USA(AZ, CO, NM, OK, TX, UT, WY) Asclepiadaceae
Asclepias variegata CAN(ON), USA(AL, AR, CT, DC, DE, FL, GA, IL, IN, KY, LA, MD, MO, MS, NC, NJ, NY, OH, OK, PA, SC, TN, TX, VA, WV) Asclepiadaceae
Asclepias verticillata CAN(MB, ON, SK), USA(AL, AR, AZ, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, MI, MN, MO, MS, MT, NC, ND, NE, NJ, NM, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WI, WV, WY) Asclepiadaceae
Asclepias viridiflora CAN(AB, BC, MB, ON, SK), USA(AL, AR, AZ, CO, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MD, MI, MN, MO, MS, MT, NC, ND, NE, NJ, NM, NY, OH, OK, PA, SC, SD, TN, TX, VA, WI, WV, WY) Asclepiadaceae
Asclepias viridis USA(AL, AR, FL, GA, IL, IN, KS, KY, LA, MO, MS, NE, OH, OK, SC, TN, TX, WV) Asclepiadaceae
Asimina CAN(ON), USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MD, MI, MO, MS, NC, NE, NJ, NY, OH, OK, PA, SC, TN, TX, VA, WI, WV) Annonaceae
Asimina parviflora USA(AL, AR, FL, GA, LA, MS, NC, SC, TX, VA) Annonaceae
Asimina triloba CAN(ON), USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MD, MI, MO, MS, NC, NE, NJ, NY, OH, OK, PA, SC, TN, TX, VA, WI, WV) Annonaceae
Asparagus CAN(AB, BC, LB, MB, NB, NF, NS, ON, PE, QC, SK), FRA(SB), USA+(PR), USA(AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Liliaceae
Asparagus officinalis CAN(AB, BC, LB, MB, NB, NF, NS, ON, PE, QC, SK), FRA(SB), USA(AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Liliaceae
Asperula CAN(AB, ON), USA(CT, DC, DE, MA, MD, ND, NY, OR, PA, TX, WV) Rubiaceae
Asperula arvensis CAN(AB, ON), USA(CT, DC, DE, MA, MD, NY, PA, TX, WV) Rubiaceae
Asphodelus USA(CA, NM, TX) Liliaceae
Asphodelus fistulosus USA(CA, NM, TX) Liliaceae
Aspicarpa USA(AZ, NM, TX) Malpighiaceae
Aspicarpa hyssopifolia USA(TX) Malpighiaceae
Aspicarpa longipes USA(TX) Malpighiaceae
Aspicilia CAN(AB, BC, LB, MB, NB, NF, NS, NT, NU, ON, PE, QC, SK, YT), USA(AK, AL, AR, AZ, CA, CO, CT, DE, GA, IA, ID, IL, IN, KS, KY, MA, MD, ME, MI, MN, MO, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Hymeneliaceae
Asplenium CAN(AB, BC, LB, NB, NF, NS, NT, ON, QC, YT), DEN(GL), USA+(PR, VI), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, PW, RI, SC, SD, TN, TX, UM, UT, VA, VT, WA, WI, WV, WY) Aspleniaceae
Asplenium palmeri USA(AZ, FL, NM, TX) Aspleniaceae
Asplenium platyneuron CAN(ON, QC), USA(AL, AR, AZ, CO, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, NE, NH, NJ, NM, NY, OH, OK, PA, RI, SC, TN, TX, VA, VT, WI, WV) Aspleniaceae
Asplenium platyneuron var. platyneuron CAN(ON, QC), USA(AL, AR, AZ, CO, CT, DC, DE, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, NE, NH, NJ, NM, NY, OH, OK, PA, RI, SC, TN, TX, VA, VT, WI, WV) Aspleniaceae
Asplenium resiliens USA(AL, AR, AZ, CO, DE, FL, GA, IL, IN, KS, KY, LA, MD, MO, MS, NC, NM, NV, OH, OK, PA, SC, TN, TX, UT, VA, WV) Aspleniaceae
Asplenium septentrionale USA(AZ, CA, CO, ID, NM, OK, OR, SD, TX, UT, WV, WY) Aspleniaceae
Asplenium trichomanes CAN(AB, BC, LB, NB, NF, NS, NT, ON, QC, YT), DEN(GL), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, NH, NJ, NM, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Aspleniaceae
Asplenium trichomanes ssp. trichomanes CAN(AB, BC, NB, NF, NS, ON, QC), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, NH, NJ, NM, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Aspleniaceae
Astragalus CAN(AB, BC, LB, MB, NB, NF, NS, NT, NU, ON, QC, SK, YT), DEN(GL), USA(AK, AL, AR, AZ, CA, CO, CT, DC, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Fabaceae
Astragalus albulus USA(AZ, NM, TX) Fabaceae
Astragalus allochrous USA(AZ, NM, TX) Fabaceae
Astragalus amphioxys USA(AZ, CO, NM, NV, TX, UT) Fabaceae
Astragalus amphioxys var. amphioxys USA(AZ, NM, NV, TX, UT) Fabaceae
Astragalus brazoensis USA(TX) Fabaceae
Astragalus canadensis CAN(AB, BC, MB, NT, ON, QC, SK), USA(AL, AR, CA, CO, CT, DC, GA, IA, ID, IL, IN, KS, KY, LA, MD, MI, MN, MO, MS, MT, NC, ND, NE, NJ, NM, NV, NY, OH, OK, OR, PA, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Fabaceae
Astragalus canadensis var. canadensis CAN(AB, BC, MB, NT, ON, QC, SK), USA(AL, AR, CO, CT, DC, GA, IA, ID, IL, IN, KS, KY, LA, MD, MI, MN, MO, MS, MT, NC, ND, NE, NJ, NM, NY, OH, OK, PA, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Fabaceae
Astragalus ceramicus USA(AZ, CO, ID, KS, MT, ND, NE, NM, NV, OK, SD, TX, UT, WY) Fabaceae
Astragalus ceramicus var. filifolius USA(CO, KS, MT, ND, NE, NM, OK, SD, TX, WY) Fabaceae
Astragalus crassicarpus CAN(AB, BC, MB, SK), USA(AR, AZ, CO, IA, IL, KS, LA, MN, MO, MT, ND, NE, NM, OK, SD, TX, WI, WY) Fabaceae
Astragalus crassicarpus var. berlandieri USA(TX) Fabaceae
Astragalus crassicarpus var. crassicarpus CAN(AB, BC, MB, SK), USA(AR, CO, IA, KS, MN, MO, MT, ND, NE, NM, OK, SD, TX, WI, WY) Fabaceae
Astragalus crassicarpus var. trichocalyx USA(AR, IL, KS, LA, MO, OK, TX) Fabaceae
Astragalus distortus USA(AR, IA, IL, KS, LA, MD, MO, MS, OK, TX, VA, WV) Fabaceae
Astragalus distortus var. distortus USA(AR, IA, IL, KS, LA, MD, MO, OK, TX, VA, WV) Fabaceae
Astragalus distortus var. engelmannii USA(AR, LA, MS, TX) Fabaceae
Astragalus emoryanus USA(AZ, NM, TX, UT) Fabaceae
Astragalus emoryanus var. emoryanus USA(AZ, NM, TX, UT) Fabaceae
Astragalus emoryanus var. terlinguensis USA(TX) Fabaceae
Astragalus giganteus USA(NM, TX) Fabaceae
Astragalus gracilis USA(CO, KS, MT, ND, NE, NM, OK, SD, TX, WY) Fabaceae
Astragalus gypsodes USA(NM, TX) Fabaceae
Astragalus humistratus USA(AZ, NM, NV, TX, UT) Fabaceae
Astragalus humistratus var. humistratus USA(AZ, NM, TX) Fabaceae
Astragalus lentiginosus CAN(BC), USA(AZ, CA, CO, ID, MT, NM, NV, OR, TX, UT, WA, WY) Fabaceae
Astragalus lentiginosus var. australis USA(AZ, NM, TX) Fabaceae
Astragalus lentiginosus var. diphysus USA(AZ, CO, NM, NV, TX, UT) Fabaceae
Astragalus lentiginosus var. higginsii USA(TX) Fabaceae
Astragalus leptocarpus USA(AR, LA, OK, TX) Fabaceae
Astragalus lindheimeri USA(OK, TX) Fabaceae
Astragalus lotiflorus CAN(AB, BC, MB, SK), USA(CO, IA, KS, MN, MO, MT, ND, NE, NM, OK, SD, TX, WY) Fabaceae
Astragalus missouriensis CAN(AB, MB, SK), USA(CO, IA, KS, MN, MT, ND, NE, NM, OK, SD, TX, UT, WY) Fabaceae
Astragalus missouriensis var. missouriensis CAN(AB, MB, SK), USA(CO, IA, KS, MN, MT, ND, NE, NM, OK, SD, TX, WY) Fabaceae
Astragalus mollissimus USA(AZ, CO, KS, NE, NM, NV, OK, SD, TX, UT, WY) Fabaceae
Astragalus mollissimus var. bigelovii USA(AZ, NM, TX) Fabaceae
Astragalus mollissimus var. coryi USA(TX) Fabaceae
Astragalus mollissimus var. earlei USA(NM, TX) Fabaceae
Astragalus mollissimus var. marcidus USA(TX) Fabaceae
Astragalus mollissimus var. mollissimus USA(CO, KS, NE, NM, OK, SD, TX, WY) Fabaceae
Astragalus nuttallianus USA(AR, AZ, CA, CO, KS, LA, NM, NV, OK, TX, UT) Fabaceae
Astragalus nuttallianus var. austrinus USA(AZ, CA, CO, NM, OK, TX) Fabaceae
Astragalus nuttallianus var. macilentus USA(NM, TX) Fabaceae
Astragalus nuttallianus var. nuttallianus USA(AR, KS, LA, OK, TX) Fabaceae
Astragalus nuttallianus var. trichocarpus USA(OK, TX) Fabaceae
Astragalus nuttallianus var. zapatanus USA(TX) Fabaceae
Astragalus pictiformis USA(NM, TX) Fabaceae
Astragalus plattensis USA(CO, KS, MT, ND, NE, OK, SD, TX, WY) Fabaceae
Astragalus pleianthus USA(TX) Fabaceae
Astragalus praelongus USA(AZ, CO, NM, NV, TX, UT) Fabaceae
Astragalus praelongus var. ellisiae USA(CO, NM, TX, UT) Fabaceae
Astragalus puniceus USA(CO, NM, OK, TX) Fabaceae
Astragalus puniceus var. puniceus USA(CO, NM, OK, TX) Fabaceae
Astragalus racemosus CAN(SK), USA(CO, KS, MN, MT, ND, NE, NM, OK, SD, TX, UT, WY) Fabaceae
Astragalus racemosus var. racemosus CAN(SK), USA(CO, KS, MN, MT, ND, NE, NM, OK, SD, TX, WY) Fabaceae
Astragalus reflexus USA(TX) Fabaceae
Astragalus soxmaniorum USA(AR, LA, TX) Fabaceae
Astragalus waterfallii USA(NM, TX) Fabaceae
Astragalus wootonii USA(AZ, CA, CO, NM, TX) Fabaceae
Astragalus wrightii USA(TX) Fabaceae
Astranthium USA(AL, AR, GA, KS, KY, MO, MS, NC, OK, TN, TX, WV) Asteraceae
Astranthium integrifolium USA(AL, AR, GA, KS, KY, MO, MS, NC, OK, TN, TX, WV) Asteraceae
Astranthium integrifolium ssp. ciliatum USA(AR, KS, MO, OK, TX) Asteraceae
Astranthium robustum USA(TX) Asteraceae
Astrolepis USA+(PR), USA(AL, AZ, CA, CO, GA, NM, NV, OK, TX) Pteridaceae
Astrolepis cochisensis USA(AZ, CA, CO, NM, TX) Pteridaceae
Astrolepis cochisensis ssp. chihuahuaensis USA(NM, TX) Pteridaceae
Astrolepis cochisensis ssp. cochisensis USA(AZ, CA, CO, NM, TX) Pteridaceae
Astrolepis integerrima USA(AL, AZ, CO, NM, NV, OK, TX) Pteridaceae
Astrolepis sinuata USA+(PR), USA(AZ, GA, NM, OK, TX) Pteridaceae
Astrolepis sinuata ssp. mexicana USA(NM, TX) Pteridaceae
Astrolepis sinuata ssp. sinuata USA+(PR), USA(AZ, GA, NM, OK, TX) Pteridaceae
Astrolepis windhamii USA(AZ, NM, TX) Pteridaceae
Astrophytum USA(TX) Cactaceae
Astrophytum asterias USA(TX) Cactaceae
Athyrium CAN(AB, BC, LB, MB, NB, NF, NS, NT, ON, PE, QC, SK, YT), DEN(GL), FRA(SB), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Dryopteridaceae
Athyrium filix-femina CAN(AB, BC, LB, MB, NB, NF, NS, NT, ON, PE, QC, SK, YT), DEN(GL), FRA(SB), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Dryopteridaceae
Athyrium filix-femina ssp. asplenioides USA(AL, AR, CT, DC, DE, FL, GA, IL, IN, KS, KY, LA, MA, MD, MO, MS, NC, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA, WV) Dryopteridaceae
Atriplex CAN(AB, BC, LB, MB, NB, NF, NS, NT, ON, PE, QC, SK, YT), DEN(GL), FRA(SB), USA+(PR, VI) Chenopodiaceae
Atriplex acanthocarpa USA(AZ, NM, TX) Chenopodiaceae
Atriplex acanthocarpa ssp. acanthocarpa USA(AZ, NM, TX) Chenopodiaceae
Atriplex acanthocarpa ssp. coahuilensis USA(TX) Chenopodiaceae
Atriplex argentea CAN(AB, BC, MB, SK), USA(AZ, CA, CO, ID, IL, KS, MT, ND, NE, NM, NV, OK, OR, SD, TX, UT, WA, WY) Chenopodiaceae
Atriplex argentea ssp. argentea CAN(AB, BC, MB, SK), USA(AZ, CA, CO, ID, IL, KS, MT, ND, NE, NM, NV, OK, OR, SD, TX, UT, WA, WY) Chenopodiaceae
Atriplex argentea ssp. argentea var. argentea USA(AZ, CA, CO, ID, IL, KS, MT, ND, NE, NM, NV, OK, OR, SD, TX, UT, WA, WY) Chenopodiaceae
Atriplex argentea ssp. expansa USA(AZ, CA, CO, NM, NV, TX) Chenopodiaceae
Atriplex canescens CAN(AB), USA(AZ, CA, CO, ID, KS, MT, ND, NE, NM, NV, OK, OR, SD, TX, UT, WA, WY) Chenopodiaceae
Atriplex canescens var. canescens CAN(AB), USA(AZ, CA, CO, ID, KS, MT, ND, NE, NM, NV, OK, OR, SD, TX, UT, WA, WY) Chenopodiaceae
Atriplex confertifolia USA(AZ, CA, CO, ID, MT, ND, NM, NV, OR, TX, UT, WY) Chenopodiaceae
Atriplex cristata USA+(PR, VI), USA(AL, CT, DE, FL, GA, LA, MA, MD, MS, NC, NH, NJ, NY, PA, RI, SC, TX, VA) Chenopodiaceae
Atriplex elegans USA(AZ, CA, MD, NM, NV, TX, UT) Chenopodiaceae
Atriplex elegans var. elegans USA(AZ, CA, NM, TX, UT) Chenopodiaceae
Atriplex holocarpa USA(TX) Chenopodiaceae
Atriplex klebergorum USA(TX) Chenopodiaceae
Atriplex matamorensis USA(TX) Chenopodiaceae
Atriplex muricata USA(TX) Chenopodiaceae
Atriplex obovata USA(AZ, CO, NM, TX, UT) Chenopodiaceae
Atriplex patula CAN(AB, BC, MB, NB, NF, NS, NT, ON, PE, QC, SK), DEN(GL), FRA(SB), USA(AK, AL, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, MA, MD, ME, MI, MN, MO, MT, NC, ND, NE, NH, NJ, NV, NY, OH, OR, PA, RI, SC, SD, TX, UT, VA, VT, WA, WI, WV, WY) Chenopodiaceae
Atriplex powellii CAN(AB, SK), USA(AZ, CO, MT, ND, NE, NM, OR, SD, TX, UT, WA, WY) Chenopodiaceae
Atriplex prostrata CAN(AB, BC, MB, NB, NS, ON, PE, QC, SK), USA(AL, AZ, CA, CO, CT, DC, IA, ID, IL, IN, KS, KY, MA, MD, ME, MI, MN, MO, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OR, PA, RI, SC, SD, TX, UT, VA, VT, WA, WI, WV, WY) Chenopodiaceae
Atriplex rosea CAN(AB, BC, NS, ON, SK), USA(AL, AZ, CA, CO, FL, IA, ID, IL, IN, KS, MA, MD, MI, MO, MT, ND, NE, NJ, NM, NV, NY, OH, OR, PA, RI, SC, SD, TX, UT, VA, WA, WI, WY) Chenopodiaceae
Atriplex saccaria USA(AZ, CO, NM, NV, TX, UT, WY) Chenopodiaceae
Atriplex semibaccata USA(AZ, CA, HI, NM, NV, TX, UT) Chenopodiaceae
Atriplex subspicata USA(AZ, CA, CO, CT, ID, KS, LA, MA, ME, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OK, OR, TX, UT, VA, WA, WV, WY) Chenopodiaceae
Atriplex texana USA(TX) Chenopodiaceae
Atriplex wardii USA(TX) Chenopodiaceae
Atriplex wrightii USA(AZ, NM, TX) Chenopodiaceae
Aureolaria CAN(ON), USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, NH, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA, VT, WI, WV) Scrophulariaceae
Aureolaria flava CAN(ON), USA(AL, AR, CT, DE, FL, GA, IL, IN, KY, LA, MA, MD, ME, MI, MO, MS, NC, NH, NJ, NY, OH, PA, RI, SC, TN, TX, VA, VT, WV) Scrophulariaceae
Aureolaria flava var. flava CAN(ON), USA(AL, AR, CT, DE, FL, GA, IL, IN, KY, MA, MD, ME, MI, MO, MS, NC, NH, NJ, NY, OH, PA, RI, SC, TN, TX, VA, VT, WV) Scrophulariaceae
Aureolaria flava var. macrantha CAN(ON), USA(AL, AR, IL, IN, KY, LA, MD, MO, MS, NC, NY, OH, PA, TN, TX, VA, WV) Scrophulariaceae
Aureolaria grandiflora USA(AR, IA, IL, IN, KS, LA, MN, MO, OK, TX, WI) Scrophulariaceae
Aureolaria grandiflora var. cinerea USA(AR, KS, MO, OK, TX) Scrophulariaceae
Aureolaria grandiflora var. grandiflora USA(TX) Scrophulariaceae
Aureolaria grandiflora var. serrata USA(AR, LA, TX) Scrophulariaceae
Aureolaria pectinata USA(AL, AR, FL, GA, KY, LA, MO, MS, NC, OK, SC, TN, TX, VA) Scrophulariaceae
Aureolaria virginica CAN(ON), USA(AL, CT, DC, DE, FL, GA, IN, KY, LA, MA, MD, MI, MS, NC, NH, NJ, NY, OH, PA, RI, SC, TN, TX, VA, VT, WV) Scrophulariaceae
Avena CAN(AB, BC, MB, NB, NF, NS, NT, ON, PE, QC, SK, YT), DEN(GL), FRA(SB), USA+(PR) Poaceae
Avena fatua CAN(AB, BC, MB, NB, NF, NS, NT, ON, PE, QC, SK), USA(AK, AL, AZ, CA, CO, CT, DE, FL, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Poaceae
Avena sativa CAN(AB, BC, MB, NB, NF, NS, NT, ON, PE, QC, SK, YT), DEN(GL), FRA(SB), USA+(PR) Poaceae
Avicennia USA+(PR, VI), USA(CA, FL, LA, MS, PW, TX) Verbenaceae
Avicennia germinans USA+(PR, VI), USA(FL, LA, MS, TX) Verbenaceae
Axonopus USA+(PR, VI), USA(AL, AR, CA, DE, FL, GA, HI, LA, MD, MS, NC, OK, PW, SC, TX, VA) Poaceae
Axonopus compressus USA+(PR, VI), USA(AL, AR, FL, GA, LA, PW, SC, TX) Poaceae
Axonopus fissifolius USA+(PR), USA(AL, AR, CA, FL, GA, HI, LA, MS, NC, OK, SC, TX, VA) Poaceae
Axonopus furcatus USA(AL, AR, DE, FL, GA, LA, MD, MS, NC, OK, SC, TX, VA) Poaceae
Ayenia USA+(PR, VI), USA(AZ, CA, FL, NAV, NM, TX) Sterculiaceae
Ayenia filiformis USA(AZ, NM, TX) Sterculiaceae
Ayenia limitaris USA(TX) Sterculiaceae
Ayenia microphylla USA(AZ, NM, TX) Sterculiaceae
Ayenia pilosa USA(NM, TX) Sterculiaceae
Azolla CAN(BC, ON), USA+(PR), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, SC, SD, TN, TX, UT, VA, WA, WI, WV) Azollaceae
Azolla caroliniana CAN(BC, ON), USA+(PR), USA(AL, AR, CT, DC, DE, FL, GA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MO, MS, NC, NE, NH, NJ, NY, OH, OK, PA, SC, SD, TN, TX, VA, WI, WV) Azollaceae
Azolla filiculoides CAN(BC), USA(AK, AZ, CA, FL, HI, NY, OR, TX, WA) Azollaceae
Azolla microphylla CAN(BC), USA(AR, AZ, CA, CO, IA, IL, KS, MN, MO, NE, NM, NV, OK, OR, TX, UT, WA, WI) Azollaceae
Baccharis USA+(PR, VI), USA(AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, KS, LA, MA, MD, MS, NC, NJ, NM, NV, NY, OK, OR, PA, RI, SC, TN, TX, UT, VA) Asteraceae
Baccharis bigelovii USA(AZ, NM, TX) Asteraceae
Baccharis brachyphylla USA(AZ, CA, NM, NV, TX) Asteraceae
Baccharis emoryi USA(AZ, CA, NM, NV, TX, UT) Asteraceae
Baccharis halimifolia USA(AL, AR, CT, DC, DE, FL, GA, LA, MA, MD, MS, NC, NJ, NY, OK, PA, RI, SC, TN, TX, VA) Asteraceae
Baccharis havardii USA(NM, TX) Asteraceae
Baccharis neglecta USA(AZ, NM, TX) Asteraceae
Baccharis pteronioides USA(AZ, NM, TX) Asteraceae
Baccharis salicifolia USA(AZ, CA, CO, NM, NV, TX, UT) Asteraceae
Baccharis salicina USA(CO, KS, NM, OK, TX, UT) Asteraceae
Baccharis sarothroides USA(AZ, CA, NM, NV, TX) Asteraceae
Baccharis texana USA(NM, OK, TX) Asteraceae
Baccharis wrightii USA(AZ, CO, KS, NM, OK, TX, UT) Asteraceae
Bacidia CAN(AB, BC, MB, NB, NF, NS, NT, ON, PE, QC, SK, YT), USA(AL, AR, CA, CT, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, VA, VT, WA, WI, WV) Bacidiaceae
Bacopa CAN(AB), USA+(PR, VI), USA(AL, AR, AZ, CA, CO, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MD, MN, MO, MS, MT, NC, ND, NE, NM, NV, OK, SC, SD, TN, TX, UM, VA, WI, WY) Scrophulariaceae
Bacopa caroliniana USA(AL, FL, GA, LA, MD, MS, NC, SC, TX, VA) Scrophulariaceae
Bacopa monnieri USA+(PR, VI), USA(AL, AZ, CA, FL, GA, HI, LA, MD, MS, NC, OK, SC, TX, UM, VA) Scrophulariaceae
Bacopa repens USA+(PR), USA(CA, LA, SC, TX) Scrophulariaceae
Bacopa rotundifolia CAN(AB), USA(AL, AR, AZ, CA, CO, IA, ID, IL, IN, KS, KY, LA, MD, MN, MO, MS, MT, NC, ND, NE, NM, OK, SD, TN, TX, VA, WI, WY) Scrophulariaceae
Bahia USA(AZ, CA, CO, MD, NM, NV, TX, UT, WY) Asteraceae
Bahia absinthifolia USA(AZ, NM, TX) Asteraceae
Bahia absinthifolia var. absinthifolia USA(AZ, NM, TX) Asteraceae
Bahia absinthifolia var. dealbata USA(AZ, NM, TX) Asteraceae
Bahia bigelovii USA(TX) Asteraceae
Bahia dissecta USA(AZ, CA, CO, NM, NV, TX, UT, WY) Asteraceae
Bahia pedata USA(NM, TX) Asteraceae
Baileya USA(AZ, CA, NM, NV, TX, UT) Asteraceae
Baileya multiradiata USA(AZ, CA, NM, NV, TX, UT) Asteraceae
Baptisia CAN(ON), USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, NE, NH, NJ, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WI, WV) Fabaceae
Baptisia ×bushii USA(AR, LA, OK, TX) Fabaceae
Baptisia ×sulphurea USA(AR, LA, OK, TX) Fabaceae
Baptisia ×variicolor USA(TX) Fabaceae
Baptisia alba USA(AL, AR, FL, GA, IA, IL, IN, KS, KY, LA, MI, MN, MO, MS, NC, NE, NY, OH, OK, SC, TN, TX, VA, WI) Fabaceae
Baptisia alba var. macrophylla USA(AR, IA, IL, IN, KS, KY, LA, MI, MN, MO, MS, NE, NY, OH, OK, TN, TX, WI) Fabaceae
Baptisia australis CAN(ON), USA(AL, AR, CT, DC, GA, IA, IL, IN, KS, KY, MA, MD, MI, MO, NC, NE, NH, NJ, NY, OH, OK, PA, SC, TN, TX, VA, VT, WI, WV) Fabaceae
Baptisia australis var. minor CAN(ON), USA(AR, IA, IL, KS, KY, MO, NE, OK, TX) Fabaceae
Baptisia bracteata USA(AL, AR, GA, IA, IL, IN, KS, KY, LA, MA, MI, MN, MO, MS, NC, NE, NJ, OK, SC, SD, TN, TX, WI) Fabaceae
Baptisia bracteata var. laevicaulis USA(LA, TX) Fabaceae
Baptisia bracteata var. leucophaea USA(AR, IA, IL, IN, KS, KY, LA, MA, MI, MN, MO, MS, NE, NJ, OK, SD, TN, TX, WI) Fabaceae
Baptisia nuttalliana USA(AR, LA, MS, OK, TX) Fabaceae
Baptisia sphaerocarpa USA(AR, LA, MO, MS, OK, TX) Fabaceae
Barbula CAN(AB, BC, MB, NB, NF, NS, NT, ON, PE, QC, SK, YT), DEN(GL), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NAV, NC, ND, NE, NH, NJ, NM, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Pottiaceae
Barkleyanthus USA(AZ, NM, TX) Asteraceae
Barkleyanthus salicifolius USA(AZ, NM, TX) Asteraceae
Bartlettia USA(NM, TX) Asteraceae
Bartlettia scaposa USA(NM, TX) Asteraceae
Bartonia CAN(NB, NF, NS, ON, QC), FRA(SB), USA(AL, AR, CT, DC, DE, FL, GA, IL, IN, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, NH, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA, VT, WI, WV) Gentianaceae
Bartonia paniculata CAN(NB, NF, NS, ON), FRA(SB), USA(AL, AR, CT, DC, DE, FL, GA, IL, KY, MA, MD, ME, MI, MO, MS, NC, NH, NJ, NY, OK, PA, RI, SC, TN, TX, VA, WI, WV) Gentianaceae
Bartonia paniculata ssp. paniculata CAN(ON), USA(AL, AR, CT, DC, DE, FL, GA, IL, KY, MA, MD, ME, MI, MO, MS, NC, NH, NJ, NY, OK, PA, RI, SC, TN, TX, VA, WI, WV) Gentianaceae
Bartonia texana USA(TX) Gentianaceae
Bartonia verna USA(AL, FL, GA, LA, MS, NC, SC, TX, VA) Gentianaceae
Bassia CAN(AB, BC, MB, NB, ON, QC, SK), USA(AZ, CA, CO, CT, DE, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Chenopodiaceae
Bassia americana USA(AZ, CA, CO, ID, MT, NM, NV, OR, TX, UT, WY) Chenopodiaceae
Bassia hyssopifolia CAN(AB, BC), USA(AZ, CA, CO, HI, IA, ID, KY, MA, ME, MT, NJ, NM, NV, NY, OR, SD, TX, UT, WA, WY) Chenopodiaceae
Bassia scoparia CAN(AB, BC, MB, NB, ON, QC, SK), USA(AZ, CA, CO, CT, DE, IA, ID, IL, IN, KS, KY, LA, MA, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Chenopodiaceae
Bastardia USA+(PR, VI), USA(TX) Malvaceae
Bastardia viscosa USA+(PR, VI), USA(TX) Malvaceae
Bastardia viscosa var. viscosa USA+(PR, VI), USA(TX) Malvaceae
Batesimalva USA(TX) Malvaceae
Batesimalva violacea USA(TX) Malvaceae
Batis USA+(PR, VI), USA(AL, CA, FL, GA, HI, LA, MS, NC, SC, TX) Bataceae
Batis maritima USA+(PR, VI), USA(AL, CA, FL, GA, HI, LA, MS, NC, SC, TX) Bataceae
Bauhinia USA+(PR, VI), USA(CA, FL, HI, LA, PW, TX) Fabaceae
Bauhinia galpinii USA+(PR), USA(CA, TX) Fabaceae
Bauhinia lunarioides USA(TX) Fabaceae
Bauhinia monandra USA+(PR, VI), USA(FL, HI, PW, TX) Fabaceae
Bauhinia purpurea USA+(PR), USA(FL, TX) Fabaceae
Bauhinia variegata USA+(PR), USA(CA, FL, LA, TX) Fabaceae
Bebbia USA(AZ, CA, NM, NV, TX, UT) Asteraceae
Bebbia juncea USA(AZ, CA, NM, NV, TX, UT) Asteraceae
Bebbia juncea var. aspera USA(AZ, CA, NM, NV, TX, UT) Asteraceae
Belamcanda USA+(PR), USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MD, MI, MN, MO, MS, NC, NE, NJ, NY, OH, OK, PA, SC, SD, TN, TX, VA, VT, WI, WV) Iridaceae
Belamcanda chinensis USA+(PR), USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MD, MI, MN, MO, MS, NC, NE, NJ, NY, OH, OK, PA, SC, SD, TN, TX, VA, VT, WI, WV) Iridaceae
Bellardia USA(CA, LA, TX) Scrophulariaceae
Bellardia trixago USA(CA, LA, TX) Scrophulariaceae
Berchemia USA(AL, AR, FL, GA, IL, KY, LA, MD, MO, MS, NC, OK, SC, TN, TX, VA) Rhamnaceae
Berchemia scandens USA(AL, AR, FL, GA, IL, KY, LA, MD, MO, MS, NC, OK, SC, TN, TX, VA) Rhamnaceae
Bergia USA(AR, CA, CO, IL, KS, LA, MO, MT, NE, NM, NV, OK, OR, SD, TX, UT, WA) Elatinaceae
Bergia texana USA(AR, CA, CO, IL, KS, LA, MO, MT, NE, NM, NV, OK, OR, SD, TX, UT, WA) Elatinaceae
Berlandiera USA(AL, AR, AZ, CO, FL, GA, KS, LA, MO, MS, NC, NM, OK, SC, TX) Asteraceae
Berlandiera betonicifolia USA(AR, KS, LA, MO, MS, NM, OK, TX) Asteraceae
Berlandiera lyrata USA(AZ, CO, KS, NM, OK, TX) Asteraceae
Berlandiera pumila USA(AL, AR, FL, GA, LA, NC, OK, SC, TX) Asteraceae
Berlandiera pumila var. pumila USA(AL, AR, FL, GA, LA, NC, OK, SC, TX) Asteraceae
Berlandiera pumila var. scabrella USA(LA, TX) Asteraceae
Bernardia USA+(PR), USA(AZ, CA, NM, NV, TX) Euphorbiaceae
Bernardia myricifolia USA(AZ, CA, NV, TX) Euphorbiaceae
Bernardia obovata USA(NM, TX) Euphorbiaceae
Berula CAN(BC, ON), USA(AR, AZ, CA, CO, IA, ID, IL, KS, MI, MN, MO, MT, ND, NE, NM, NV, NY, OK, OR, SD, TX, UT, WA, WI, WY) Apiaceae
Berula erecta CAN(BC, ON), USA(AR, AZ, CA, CO, IA, ID, IL, KS, MI, MN, MO, MT, ND, NE, NM, NV, NY, OK, OR, SD, TX, UT, WA, WI, WY) Apiaceae
Beta USA+(PR), USA(AL, CA, CT, MA, ME, MI, MO, MT, NC, NH, NY, OR, PA, SC, TX, UT, VA, WV) Chenopodiaceae
Beta vulgaris USA+(PR), USA(AL, CA, CT, MA, ME, MI, MO, MT, NC, NH, NY, OR, PA, SC, TX, UT, VA, WV) Chenopodiaceae
Betula CAN(AB, BC, LB, MB, NB, NF, NS, NT, NU, ON, PE, QC, SK, YT), DEN(GL), FRA(SB), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Betulaceae
Betula nigra USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, MI, MN, MO, MS, NC, NH, NJ, NY, OH, OK, PA, SC, TN, TX, VA, VT, WI, WV) Betulaceae
Bidens CAN(AB, BC, MB, NB, NF, NS, NT, NU, ON, PE, QC, SK, YT), USA+(PR, VI), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NAV, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, PW, RI, SC, SD, TN, TX, UM, UT, VA, VT, WA, WI, WV, WY) Asteraceae
Bidens aristosa CAN(ON), USA(AL, AR, CO, CT, DC, DE, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, NE, NH, NJ, NY, OH, OK, PA, SC, TN, TX, VA, WI, WV) Asteraceae
Bidens bigelovii USA(AZ, CO, NM, OK, TX) Asteraceae
Bidens bigelovii var. bigelovii USA(AZ, CO, NM, OK, TX) Asteraceae
Bidens bipinnata CAN(NB, ON), USA(AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, MO, MS, NC, NE, NJ, NM, NY, OH, OK, PA, RI, SC, TN, TX, VA, WV) Asteraceae
Bidens cernua CAN(AB, BC, MB, NB, NS, NT, ON, PE, QC, SK, YT), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Asteraceae
Bidens discoidea CAN(NB, NS, ON, QC), USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, NH, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA, VT, WI, WV) Asteraceae
Bidens frondosa CAN(AB, BC, MB, NB, NF, NS, ON, PE, QC, SK), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Asteraceae
Bidens laevis USA(AL, AR, AZ, CA, CT, DC, DE, FL, GA, IN, KY, LA, MA, MD, ME, MO, MS, NC, NH, NJ, NM, NV, NY, OH, PA, RI, SC, TN, TX, VA, WV) Asteraceae
Bidens leptocephala USA(AZ, NM, TX) Asteraceae
Bidens mitis USA(AL, DE, FL, GA, LA, MD, MS, NC, NJ, SC, TX, VA) Asteraceae
Bidens pilosa CAN(ON, QC), USA+(PR, VI), USA(AL, AZ, CA, CT, FL, GA, HI, KY, LA, MD, MS, NC, NM, OH, OR, PA, PW, SC, TX, UM, WI) Asteraceae
Bidens tenuisecta USA(AZ, CO, ID, MA, MD, NM, NY, TX, UT) Asteraceae
Bidens tripartita CAN(AB, BC, NB, NS, ON, PE, QC), USA(AK, AL, CA, CO, CT, DC, DE, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Asteraceae
Bifora USA(AR, MD, NJ, OK, PA, RI, TX) Apiaceae
Bifora americana USA(AR, OK, TX) Apiaceae
Bigelowia USA(AL, FL, GA, LA, MS, NC, SC, TX) Asteraceae
Bigelowia nudata USA(AL, FL, GA, LA, MS, NC, SC, TX) Asteraceae
Bigelowia nudata ssp. nudata USA(AL, FL, GA, LA, MS, NC, SC, TX) Asteraceae
Bigelowia nuttallii USA(AL, FL, GA, LA, TX) Asteraceae
Bignonia USA(AL, AR, FL, GA, IL, IN, KY, LA, MD, MO, MS, NC, OH, OK, SC, TN, TX, VA, WV) Bignoniaceae
Bignonia capreolata USA(AL, AR, FL, GA, IL, IN, KY, LA, MD, MO, MS, NC, OH, OK, SC, TN, TX, VA, WV) Bignoniaceae
Billieturnera USA(TX) Malvaceae
Billieturnera helleri USA(TX) Malvaceae
Blechnum CAN(BC), USA+(PR, VI), USA(AK, CA, FL, FM, GA, GU, HI, ID, LA, MP, OR, PW, TX, WA) Blechnaceae
Blechnum occidentale USA+(PR, VI), USA(FL, GA, HI, LA, TX) Blechnaceae
Blepharidachne USA(CA, ID, NM, NV, TX, UT) Poaceae
Blepharidachne bigelovii USA(NM, TX) Poaceae
Blepharoneuron USA(AZ, CO, NM, TX, UT) Poaceae
Blepharoneuron tricholepis USA(AZ, CO, NM, TX, UT) Poaceae
Blutaparon USA+(PR, VI), USA(FL, HI, LA, TX) Amaranthaceae
Blutaparon vermiculare USA+(PR, VI), USA(FL, HI, LA, TX) Amaranthaceae
Boehmeria CAN(NB, ON, QC), USA+(PR), USA(AL, AR, AZ, CA, CT, DC, DE, FL, GA, HI, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, NE, NH, NJ, NM, NY, OH, OK, PA, RI, SC, SD, TN, TX, UT, VA, VT, WI, WV) Urticaceae
Boehmeria cylindrica CAN(NB, ON, QC), USA+(PR), USA(AL, AR, AZ, CA, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, NE, NH, NJ, NM, NY, OH, OK, PA, RI, SC, SD, TN, TX, UT, VA, VT, WI, WV) Urticaceae
Boehmeria nivea USA+(PR), USA(AL, CA, DC, FL, GA, LA, MD, MS, SC, TX, VA) Urticaceae
Boerhavia USA+(PR, VI), USA(AL, AR, AZ, CA, CO, FL, FM, GA, HI, LA, MD, MH, MO, MS, NAV, NC, NM, NV, OK, PW, SC, TN, TX, UM, UT, VA) Nyctaginaceae
Boerhavia anisophylla USA(TX) Nyctaginaceae
Boerhavia coccinea USA+(PR, VI), USA(AL, AZ, CA, FL, GA, HI, LA, MD, NC, NM, SC, TX, VA) Nyctaginaceae
Boerhavia diffusa USA+(PR, VI), USA(AL, CA, FL, GA, LA, NC, SC, TX) Nyctaginaceae
Boerhavia erecta USA+(PR, VI), USA(AL, AR, AZ, CO, FL, GA, LA, MD, MO, MS, NAV, NC, NM, OK, SC, TN, TX) Nyctaginaceae
Boerhavia gracillima USA(AZ, NM, TX) Nyctaginaceae
Boerhavia intermedia USA(AZ, CA, NM, NV, TX) Nyctaginaceae
Boerhavia linearifolia USA(NM, TX) Nyctaginaceae
Boerhavia mathisiana USA(TX) Nyctaginaceae
Boerhavia purpurascens USA(AZ, NM, TX) Nyctaginaceae
Boerhavia scandens USA+(PR, VI), USA(AZ, NAV, NM, TX) Nyctaginaceae
Boerhavia spicata USA(AZ, NM, TX, UT) Nyctaginaceae
Boerhavia wrightii USA(AZ, CA, NM, NV, TX) Nyctaginaceae
Bolboschoenus CAN(AB, BC, MB, NB, NF, NS, NT, ON, PE, QC, SK), FRA(SB), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Cyperaceae
Bolboschoenus maritimus CAN(AB, BC, MB, NB, NF, NS, NT, ON, PE, QC, SK), FRA(SB), USA(AK, AZ, CA, CO, CT, HI, IA, ID, IL, KS, LA, MA, ME, MI, MN, MO, MT, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SD, TX, UT, VA, VT, WA, WY) Cyperaceae
Bolboschoenus maritimus ssp. paludosus CAN(AB, BC, MB, NB, NS, NT, ON, PE, QC, SK), USA(AK, AZ, CA, CO, CT, HI, IA, ID, IL, KS, MA, ME, MI, MN, MO, MT, ND, NE, NH, NJ, NM, NV, NY, OK, OR, RI, SD, TX, UT, WA, WY) Cyperaceae
Bolboschoenus robustus USA(AL, AR, CA, CT, DE, FL, GA, LA, MA, MD, ME, MS, NC, NH, NJ, NY, PA, RI, SC, TX, VA, VT) Cyperaceae
Boltonia CAN(MB, SK), USA(AL, AR, CT, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, ND, NE, NJ, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, VA, VT, WI) Asteraceae
Boltonia asteroides CAN(MB, SK), USA(AL, AR, CT, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, ND, NE, NJ, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, VA, VT, WI) Asteraceae
Boltonia asteroides var. asteroides USA(AL, DE, FL, GA, LA, MD, MS, NC, NJ, NY, PA, SC, TX, VA) Asteraceae
Boltonia diffusa USA(AL, AR, FL, GA, IL, KY, LA, MO, MS, NC, OK, SC, TN, TX) Asteraceae
Boltonia diffusa var. diffusa USA(AL, AR, FL, GA, IL, LA, MO, MS, NC, OK, SC, TX) Asteraceae
Bommeria USA(AZ, NM, TX) Pteridaceae
Bommeria hispida USA(AZ, NM, TX) Pteridaceae
Bonamia USA(FL, HI, TX) Convolvulaceae
Bonamia ovalifolia USA(TX) Convolvulaceae
Bonamia repens USA(TX) Convolvulaceae
Borrichia USA+(PR, VI), USA(AL, FL, GA, LA, MD, MS, NC, SC, TX, VA) Asteraceae
Borrichia frutescens USA(AL, FL, GA, LA, MD, MS, NC, SC, TX, VA) Asteraceae
Bothriochloa USA+(PR, VI), USA(AL, AR, AZ, CA, CO, FL, GA, HI, IL, IN, KS, KY, LA, MD, MO, MS, NAV, NE, NM, NV, NY, OH, OK, PW, SC, TN, TX, UM, UT) Poaceae
Bothriochloa alta USA(NM, TX) Poaceae
Bothriochloa barbinodis USA(AZ, CA, CO, FL, HI, NM, NV, OK, SC, TX, UT) Poaceae
Bothriochloa bladhii USA(CO, FL, HI, KS, LA, MO, NE, NM, OH, OK, PW, TX) Poaceae
Bothriochloa edwardsiana USA(TX) Poaceae
Bothriochloa exaristata USA(LA, TX) Poaceae
Bothriochloa hybrida USA(GA, LA, TX) Poaceae
Bothriochloa ischaemum USA+(PR, VI), USA(AL, AR, AZ, CA, CO, FL, GA, KS, LA, MS, NM, NY, OH, OK, SC, TN, TX, UT) Poaceae
Bothriochloa ischaemum var. ischaemum USA(NM, TX) Poaceae
Bothriochloa ischaemum var. songarica USA+(PR, VI), USA(AL, AR, AZ, CA, CO, FL, KS, LA, MS, NM, NY, OK, SC, TN, TX, UT) Poaceae
Bothriochloa laguroides USA(AL, AR, AZ, CA, CO, FL, GA, HI, IL, IN, KS, KY, LA, MO, MS, NE, NM, NV, OH, OK, SC, TN, TX, UT) Poaceae
Bothriochloa laguroides ssp. torreyana USA(AL, AR, AZ, CA, CO, FL, GA, IL, IN, KS, KY, LA, MO, MS, NE, NM, NV, OK, SC, TN, TX, UT) Poaceae
Bothriochloa longipaniculata USA(LA, MS, TX) Poaceae
Bothriochloa pertusa USA+(PR, VI), USA(FL, HI, LA, MD, MS, NAV, TX, UM) Poaceae
Bothriochloa saccharoides USA+(PR), USA(TX) Poaceae
Bothriochloa springfieldii USA(AZ, CO, LA, NM, TX, UT) Poaceae
Bothriochloa wrightii USA(AZ, NM, TX) Poaceae
Botrychium CAN(AB, BC, LB, MB, NB, NF, NS, NT, NU, ON, PE, QC, SK, YT), DEN(GL), FRA(SB), USA+(PR) Ophioglossaceae
Botrychium biternatum USA(AL, AR, CT, DC, DE, FL, GA, IL, IN, KY, LA, MD, MO, MS, NC, OH, OK, PA, SC, TN, TX, VA, WV) Ophioglossaceae
Botrychium dissectum CAN(NB, NS, ON, PE, QC), USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, NH, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA, VT, WI, WV) Ophioglossaceae
Botrychium lunarioides USA(AL, AR, FL, GA, LA, MS, NC, OK, SC, TX) Ophioglossaceae
Botrychium virginianum CAN(AB, BC, LB, MB, NB, NF, NS, NT, ON, PE, QC, SK, YT), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Ophioglossaceae
Bouchea USA+(PR, VI), USA(AL, AZ, NM, TX) Verbenaceae
Bouchea linifolia USA(NM, TX) Verbenaceae
Bouchea prismatica USA+(PR, VI), USA(AL, AZ, NM, TX) Verbenaceae
Bouchea spathulata USA(TX) Verbenaceae
Bouchetia USA(MS, TX) Solanaceae
Bouchetia erecta USA(MS, TX) Solanaceae
Bougainvillea USA+(PR, VI), USA(FL, PW, TX, UM) Nyctaginaceae
Bougainvillea glabra USA+(PR, VI), USA(FL, PW, TX) Nyctaginaceae
Bouteloua CAN(AB, BC, MB, ON, SK), USA+(PR, VI), USA(AL, AR, AZ, CA, CO, CT, DC, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NJ, NM, NV, NY, OH, OK, OR, PA, SC, SD, TN, TX, UT, VA, WA, WI, WV, WY) Poaceae
Bouteloua aristidoides USA(AZ, CA, MD, NM, NV, TX, UT) Poaceae
Bouteloua aristidoides var. aristidoides USA(AZ, CA, MD, NM, NV, TX, UT) Poaceae
Bouteloua barbata USA(AZ, CA, CO, KS, MD, MT, NM, NV, OK, OR, TX, UT) Poaceae
Bouteloua breviseta USA(NM, TX) Poaceae
Bouteloua chondrosioides USA(AZ, TX) Poaceae
Bouteloua curtipendula CAN(AB, BC, MB, ON, SK), USA(AL, AR, AZ, CA, CO, CT, DC, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NJ, NM, NY, OH, OK, OR, PA, SC, SD, TN, TX, UT, VA, WA, WI, WV, WY) Poaceae
Bouteloua curtipendula var. caespitosa USA(AZ, CA, CO, NM, OK, TX, UT) Poaceae
Bouteloua curtipendula var. curtipendula CAN(AB, BC, MB, ON, SK), USA(AL, AR, AZ, CO, CT, DC, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MD, ME, MI, MN, MO, MS, MT, ND, NE, NJ, NM, NY, OH, OK, OR, PA, SC, SD, TN, TX, UT, VA, WA, WI, WV, WY) Poaceae
Bouteloua dactyloides CAN(MB, SK), USA(AR, AZ, CO, GA, IA, IL, KS, LA, MN, MO, MT, ND, NE, NM, NV, OK, SD, TX, UT, VA, WI, WY) Poaceae
Bouteloua eriopoda USA(AZ, CA, CO, KS, NM, NV, OK, TX, UT, WY) Poaceae
Bouteloua gracilis CAN(AB, BC, MB, ON, SK), USA(AZ, CA, CO, CT, FL, IA, ID, IL, KS, MA, ME, MI, MN, MO, MT, ND, NE, NM, NV, NY, OH, OK, SC, SD, TX, UT, WI, WY) Poaceae
Bouteloua hirsuta USA(AR, AZ, CO, FL, GA, IA, IL, KS, LA, MD, ME, MN, MO, MS, MT, ND, NE, NM, NV, NY, OH, OK, SC, SD, TX, UT, WI, WY) Poaceae
Bouteloua hirsuta var. hirsuta USA(AR, AZ, CO, FL, GA, IA, IL, KS, LA, MD, ME, MN, MO, MS, MT, ND, NE, NM, NV, NY, OH, OK, SC, SD, TX, UT, WI, WY) Poaceae
Bouteloua hirsuta var. pectinata USA(OK, TX) Poaceae
Bouteloua kayi USA(TX) Poaceae
Bouteloua parryi USA(AZ, NM, TX) Poaceae
Bouteloua ramosa USA(TX) Poaceae
Bouteloua repens USA+(PR), USA(AZ, MA, ME, NM, TX) Poaceae
Bouteloua rigidiseta USA(AR, LA, MA, OK, TX) Poaceae
Bouteloua simplex USA(AZ, CO, KS, ME, NE, NM, TX, UT, WY) Poaceae
Bouteloua trifida USA(AZ, CA, NM, NV, TX, UT) Poaceae
Bouteloua trifida var. burkii USA(NM, TX) Poaceae
Bouteloua trifida var. trifida USA(AZ, CA, NM, NV, TX, UT) Poaceae
Bouteloua uniflora USA(TX) Poaceae
Bouteloua warnockii USA(NM, TX) Poaceae
Bouvardia USA(AZ, NM, TX) Rubiaceae
Bouvardia ternifolia USA(AZ, NM, TX) Rubiaceae
Bowlesia USA(AL, AZ, CA, FL, LA, MS, NM, NV, OK, OR, TX) Apiaceae
Bowlesia incana USA(AL, AZ, CA, FL, LA, MS, NM, NV, OK, OR, TX) Apiaceae
Brachiaria USA(MD, MO, MS, TX, VA, WA) Poaceae
Brachiaria eruciformis USA(MD, MO, MS, TX, VA, WA) Poaceae
Brachyelytrum CAN(NB, NF, NS, ON, PE, QC), FRA(SB), USA+(PR), USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, NE, NH, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA, VT, WI, WV) Poaceae
Brachyelytrum erectum CAN(NB, NF, NS, ON, QC), USA+(PR), USA(AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, MI, MN, MO, MS, NC, NE, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA, WI, WV) Poaceae
Brachypodium USA(CA, CO, HI, MA, NJ, OR, TX) Poaceae
Brachypodium distachyon USA(CA, CO, HI, NJ, OR, TX) Poaceae
Brasenia CAN(AB, BC, MB, NB, NF, NS, ON, QC), USA(AK, AL, AR, CA, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, NE, NH, NJ, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, VA, VT, WA, WI, WV) Cabombaceae
Brasenia schreberi CAN(AB, BC, MB, NB, NF, NS, ON, QC), USA(AK, AL, AR, CA, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, NE, NH, NJ, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, VA, VT, WA, WI, WV) Cabombaceae
Brassica CAN(AB, BC, LB, MB, NB, NF, NS, NT, ON, PE, QC, SK, YT), DEN(GL), USA+(PR, VI), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, PW, RI, SC, SD, TN, TX, UM, UT, VA, VT, WA, WI, WV, WY) Brassicaceae
Brassica juncea CAN(AB, BC, MB, NB, NF, NS, NT, ON, PE, QC, SK), USA+(PR, VI), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Brassicaceae
Brassica nigra CAN(AB, BC, MB, NB, NF, NS, ON, PE, QC, SK), USA(AL, AZ, CA, CO, CT, DC, DE, FL, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SD, TN, TX, UM, UT, VA, VT, WA, WI, WV) Brassicaceae
Brassica oleracea CAN(ON, PE, QC), DEN(GL), USA+(PR), USA(CA, CT, DC, GA, IA, IL, KY, LA, MA, MD, ME, MI, MO, MT, NJ, NM, NY, OH, OR, PA, PW, RI, TX, UM, VA, WA) Brassicaceae
Brassica rapa CAN(AB, BC, LB, MB, NB, NF, NS, NT, ON, PE, QC, SK, YT), DEN(GL), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Brassicaceae
Brassica rapa var. amplexicaulis USA(HI, OH, TX) Brassicaceae
Brassica rapa var. rapa CAN(AB, BC, LB, MB, NB, NF, NS, NT, ON, PE, QC, SK, YT), DEN(GL), USA(AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY) Brassicaceae
Brassica tournefortii USA(AZ, CA, NM, NV, TX) Brassicaceae
Brazoria USA(TX) Lamiaceae
Brazoria arenaria USA(TX) Lamiaceae
Brazoria enquistii USA(TX) Lamiaceae
Brazoria truncata USA(TX) Lamiaceae
Brazoria truncata var. pulcherrima USA(TX) Lamiaceae
Brazoria truncata var. truncata USA(TX) Lamiaceae
Brickellia CAN(AB, BC), USA(AL, AR, AZ, CA, CO, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MD, MI, MN, MO, MS, MT, NC, ND, NE, NJ, NM, NV, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, WA, WI, WV, WY) Asteraceae
Brickellia baccharidea USA(AZ, NM, TX) Asteraceae
Brickellia brachyphylla USA(AZ, CO, KS, NM, OK, TX) Asteraceae
Brickellia californica USA(AZ, CA, CO, ID, NM, NV, OK, OR, TX, UT) Asteraceae
Brickellia californica var. californica USA(AZ, CA, CO, ID, NM, NV, OK, OR, TX, UT) Asteraceae
Brickellia conduplicata USA(TX) Asteraceae
Brickellia coulteri USA(AZ, NM, TX) Asteraceae
Brickellia cylindracea USA(TX) Asteraceae
Brickellia dentata USA(TX) Asteraceae