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Introduced, Invasive, and Noxious Plants


New Hampshire State-listed Noxious Weeds
20 records returned

Noxious weeds that are synonyms retain their noxious status, and are indented beneath the current PLANTS accepted name.

New Hampshire Code of Administrative Rules. 2004. Invasive species, Chapter Agr. 3800 (, 15 September 2004). State of New Hampshire.

Symbol Scientific Name Noxious Common Name State Noxious Status† Native Status*
AIAL Ailanthus altissima (Mill.) Swingle tree of heaven PIS L48 (I), HI (I), CAN (I)
ALPE4 Alliaria petiolata (M. Bieb.) Cavara & Grande garlic mustard PIS L48 (I), AK (I), CAN (I)
BEVU Berberis vulgaris L. European barberry PIS L48 (I), CAN (I)
CEOR7 Celastrus orbiculatus Thunb. Oriental bittersweet PIS L48 (I), CAN (I)
CYLO11 Cynanchum louiseae Kartesz & Gandhi L48 (I), CAN (I)
CYNI Cynanchum nigrum (L.) Pers., non Cav. black swallow-wort PIS
CYRO8 Cynanchum rossicum (Kleopow) Borhidi pale swallow-wort PIS L48 (I), CAN (I)
ELUM Elaeagnus umbellata Thunb. autumn olive PIS L48 (I), HI (I), CAN (I)
FRAL4 Frangula alnus Mill. L48 (I), CAN (I)
RHFR Rhamnus frangula L. glossy buckthorn PIS
HEMA17 Heracleum mantegazzianum Sommier & Levier giant hogweed PIS L48 (I), CAN (I)
IRPS Iris pseudacorus L. water-flag PIS L48 (I), CAN (I)
LIOB Ligustrum obtusifolium Siebold & Zucc. blunt-leaved privet PIS L48 (I)
LOBE Lonicera ×bella Zabel [morrowii × tatarica] showy bush honeysuckle PIS L48 (I), CAN (I)
LOJA Lonicera japonica Thunb. Japanese honeysuckle PIS L48 (I), HI (I), PR (I), CAN (I)
LOMO2 Lonicera morrowii A. Gray Morrow's honeysuckle PIS L48 (I), CAN (I)
LOTA Lonicera tatarica L. Tartarian honeysuckle PIS L48 (I), AK (I), CAN (I)
POCU6 Polygonum cuspidatum Siebold & Zucc. Japanese knotweed PIS L48 (I), AK (I), CAN (I), SPM (I)
RHCA3 Rhamnus cathartica L. common buckthorn PIS L48 (I), CAN (I)
ROMU Rosa multiflora Thunb. multiflora rose PIS L48 (I), CAN (I)


†CodeNoxious Status
PIS Prohibited invasive Species

*CodeNative Status
I Introduced

*CodeNative Status Jurisdiction
L48 Lower 48 States
AK Alaska
HI Hawaii
PR Puerto Rico
CAN Canada
SPM St. Pierre and Miquelon

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

  • NH-FHWA Roadside Use of Native Plants
  • NH-New Hampshire Cooperative Extension Service
  • NH-New Hampshire Department of Agriculture, Markets and Food
  • NH-New Hampshire Department of Environmental Services
  • NH-New Hampshire Invasive Species Committee
  • Northeastern Weed Science Society-Weed Identification


Time Generated: 09/24/2020 06:44 AM CDT