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Introduced, Invasive, and Noxious Plants


Delaware State-listed Noxious Weeds
4 records returned

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

Delaware Department of Agriculture. 1986. Rules and regulations for noxious weed control (, 23 January 2006). Delaware Department of Agriculture.

Symbol Scientific Name Noxious Common Name State Noxious Status† Native Status*
AMTR Ambrosia trifida L. giant ragweed NW L48 (N), CAN (N)
CIAR4 Cirsium arvense (L.) Scop. Canada thistle NW L48 (I), AK (I), CAN (I), GL (I), SPM (I)
SIAN Sicyos angulatus L. burcucumber NW L48 (N), CAN (N)
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
N Native

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

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

  • DE-Delaware Cooperative Extension: Weed Control in Corn
  • DE-Delaware Department of Agriculture
  • DE-Delaware Department of Natural Resources and Environmental Control
  • DE-Delaware Plant Industries Noxious Weeds
  • Northeastern Weed Science Society-Weed Identification


Time Generated: 03/09/2021 01:26 AM CST