Maryland Noxious Weeds

Annotated Code of Maryland. 1994. Weed control. State of Maryland.

Subject Name Scientific Name Family Order
Canada thistle Cirsium arvense (L.) Scop. Asteraceae Asterales
musk thistle Carduus nutans L. Asteraceae Asterales
johnsongrass Sorghum halepense (L.) Pers. Poaceae Cyperales
bull thistle Cirsium vulgare (Savi) Ten. Asteraceae Asterales
spiny plumeless thistle Carduus acanthoides L. Asteraceae Asterales
sorghum Sorghum bicolor (L.) Moench Poaceae Cyperales