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Introduced, Invasive, and Noxious Plants


Pennsylvania State-listed Noxious Weeds
14 records returned

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

Pennsylvania Department of Agriculture. 2000. Pennsylvania noxious weed control list (, 20 October 2003). Pennsylvania Department of Agriculture.

Symbol Scientific Name Noxious Common Name State Noxious Status† Native Status*
CASA3 Cannabis sativa L. marijuana NW L48 (I), HI (I), PR (I), CAN (I)
CANU4 Carduus nutans L. musk thistle, nodding thistle NW L48 (I), CAN (I)
CIAR4 Cirsium arvense (L.) Scop. Canadian thistle NW L48 (I), AK (I), CAN (I), GL (I), SPM (I)
CIVU Cirsium vulgare (Savi) Ten. bull thistle, spear thistle NW L48 (I), AK (I), HI (I), CAN (I), SPM (I)
DAST Datura stramonium L. jimsonweed NW L48 (I), HI (I), PR (I), VI (I), CAN (I)
GAOF Galega officinalis L. goatsrue NW L48 (I), CAN (I)
HEMA17 Heracleum mantegazzianum Sommier & Levier giant hogweed NW L48 (I), CAN (I)
LYSA2 Lythrum salicaria L.1 purple loosestrife NW L48 (I), CAN (I), SPM (I)
POPE10 Polygonum perfoliatum L. mile-a-minute NW L48 (I)
PUMOL Pueraria montana (Lour.) Merr. var. lobata (Willd.) Maesen & S.M. Almeida ex Sanjappa & Predeep (I), L48 (I), HI (I)
PULO Pueraria lobata (Willd.) Ohwi kudzu-vine NW
ROMU Rosa multiflora Thunb. multiflora rose NW L48 (I), CAN (I)
SOBI2 Sorghum bicolor (L.) Moench shattercane NW (I), L48 (I), HI (I), PR (I), VI (I), CAN (I)
SOHA Sorghum halepense (L.) Pers. johnsongrass NW (I), L48 (I), HI (I), PR (I), CAN (I)


†CodeNoxious Status
NW Noxious weed

*CodeNative Status
I Introduced

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

1 including all cultivars  

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

  • Northeastern Weed Science Society-Weed Identification
  • PA-Common Invasive Plants in Riparian Areas
  • PA-Department of Conservation and Natural Resources
  • PA-Growing Grapes Pest Control
  • PA-Key to Identifying Common Grassy Weed Seedlings in Pennsylvania
  • PA-Pennsylvania Biosecurity and Invasive Species Consortium
  • PA-Pennsylvania Cooperative Extension Service
  • PA-Pennsylvania Department of Agriculture
  • PA-Pennsylvania State Weed Fact Sheets
  • USDI NPS Plant Invaders of Mid-Atlantic Natural Areas


Time Generated: 08/12/2020 09:56 PM CDT