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 Introduced, Invasive, and Noxious Plants
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Introduced, Invasive, and Noxious Plants

NRCS Invasive Species Policy
Invasive Species Executive Order 13112

Montana State-listed Noxious Weeds
34 records returned

Click on an accepted name below to view its PLANTS Profile with more information, and web links if available. Noxious weeds that are synonyms retain their noxious status, and are indented beneath the current PLANTS accepted name.

Montana Department of Agriculture. 2003. Montana noxious weeds list (24 May 2006). Montana Department of Agriculture.

Symbol Scientific Name Noxious Common Name State Noxious Status Native Status*
CIAR4 Cirsium arvense (L.) Scop. Canada thistle CAT1 L48 (I), AK (I), CAN (I), GL (I), SPM (I)
CRVU2 Crupina vulgaris Cass. common crupina CAT3 L48 (I)
TAVU Tanacetum vulgare L. common tansy CAT1 L48 (I), AK (I), HI (I), CAN (I), SPM (I)
LIDA Linaria dalmatica (L.) Mill. Dalmatian toadflax CAT1 L48 (I), CAN (I)
CEDI3 Centaurea diffusa Lam. diffuse knapweed CAT1 L48 (I), CAN (I)
ISTI Isatis tinctoria L. dyer's woad CAT2 L48 (I), CAN (W)
MYSP2 Myriophyllum spicatum L. Eurasian watermilfoil CAT3 L48 (I), AK (I), CAN (I)
COAR4 Convolvulus arvensis L. field bindweed CAT1 L48 (I), HI (I), CAN (I)
CYOF Cynoglossum officinale L. houndstongue CAT1 L48 (I), CAN (I)
EUES Euphorbia esula L. leafy spurge CAT1 L48 (I), CAN (I)
HICA10 Hieracium caespitosum Dumort. L48 (I), CAN (I)
HIPR Hieracium pratense Tausch meadow hawkweed CAT2
HIFL3 Hieracium ×floribundum Wimm. & Grab. (pro sp.) [caespitosum × lactucella] meadow hawkweed CAT2 L48 (I), CAN (I), SPM (I)
HIPI2 Hieracium piloselloides Vill. meadow hawkweed CAT2 L48 (I), CAN (I)
HIAU Hieracium aurantiacum L. orange hawkweed CAT2 L48 (I), AK (I), CAN (I), SPM (I)
LEVU Leucanthemum vulgare Lam. L48 (I), AK (I), HI (I), CAN (I), SPM (I)
CHLE80 Chrysanthemum leucanthemum L. ox-eye daisy CAT1
LELA2 Lepidium latifolium L. perennial pepperweed CAT2 L48 (I), CAN (I)
LYSA2 Lythrum salicaria L. purple loosestrife, lythrum CAT2 L48 (I), CAN (I), SPM (I)
LYVI3 Lythrum virgatum L. purple loosestrife, lythrum CAT2 L48 (I)
CHJU Chondrilla juncea L. rush skeletonweed CAT3 L48 (I), CAN (I)
ACRE3 Acroptilon repens (L.) DC. L48 (I), CAN (I)
CERE6 Centaurea repens L. Russian knapweed CAT1
CESTM Centaurea stoebe L. ssp. micranthos (Gugler) Hayek L48 (I), HI (I), CAN (I)
CEMA4 Centaurea maculosa auct. non Lam. spotted knapweed CAT1
HYPE Hypericum perforatum L. St. Johnswort CAT1 L48 (I), HI (I), CAN (I), SPM (I)
PORE5 Potentilla recta L. sulfur cinquefoil, erect cinquefoil CAT1 L48 (I), CAN (I)
RAAC3 Ranunculus acris L. tall buttercup CAT2 L48 (NI), AK (I), CAN (I), GL (N?), SPM (I)
TAMAR2 Tamarix L. tamarisk, saltcedar CAT2 (I), L48 (I)
SEJA Senecio jacobaea L. tansy ragwort CAT2 L48 (I), CAN (I), SPM (I)
CADR Cardaria draba (L.) Desv. whitetop, hoary cress CAT1 L48 (I), CAN (I)
IRPS Iris pseudacorus L. yellow flag iris CAT3 L48 (I), CAN (I)
CESO3 Centaurea solstitialis L. yellow starthistle CAT3 L48 (I), CAN (I)
LIVU2 Linaria vulgaris Mill. yellow toadflax CAT1 L48 (I), AK (I), CAN (I), GL (I), SPM (I)


†CodeNoxious Status
CAT1 Category 1 noxious weed
CAT2 Category 2 noxious weed
CAT3 Category 3 noxious weed

*CodeNative Status
I Introduced
N? Probably Native
W Waif

*CodeNative Status Jursdiction
L48 Lower 48 States
AK Alaska
HI Hawaii
CAN Canada
GL Greenland
SPM St. Pierre and Miquelon

Additional information about noxious plants in this state can be found at:


Time Generated: 03/22/2018 04:50 AM CDT