Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Lamiids: Lamiales
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Check out EDDMapS.org to see where this has been reported.
See more pictures at www.invasive.org.
Read Which Weed is Witchweed from Lytton Musselman and the Southern Appalachian Botanical Society.
Read more about Asiatic Witchweed at Vascular Plants of North Carolina.
To see larger pictures, click or hover over the thumbnails.
Julia Scher, Federal Noxious Weeds Disseminules, USDA APHIS ITP, Bugwood.org bug_5376868
Florida Division of Plant Industry Archive, Bugwood.org bug_5384180
Stems erect, rarely branched. Corolla tube apically strongly curved, per Flora of China.
Non-native: Old World
Habitat: Cultivated fields, parasitic on the roots of corn and other grasses, per Weakley's Flora
NEW! Click here to see a map from Weakley's Flora of the Southeastern US showing range and abundance.
Click here to see a map showing all occurrences known to SERNEC, a consortium of southeastern herbaria. (Zoom in to see more detail.)
This plant is causing problems in natural areas outside its native range, according to authorities such as:
- SC Exotic Pest Plant Council, 2014
- SC List of Regulated Pest Plant Species, 2017
- USDA Federal Noxious Weeds, 091820
Opposite or subopposite
Red/ Orange/ Yellow
4 included stamens (2 long, 2 short)
Flowers in leaf axils, solitary or in a spike upward
TO LEARN MORE about this plant, look it up in a good book!