Ambrosia bidentata Michx.

Locations ofAmbrosia bidentata Michx. in Virginia

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Botanical Name
Ambrosia bidentata Michx.
Common Name
Lance-leaf Ragweed
Flora of Virginia Name/Status
Ambrosia bidentata Michx.
Isolated populations of this Midwestern ragweed occur in the Virginia, North Carolina, and South Carolina Piedmont on soils (especially hardpans) weathered from mafic or calcareous rocks. However, the plants generally occur in weedy habitats, and it is not clear whether they represent non-native or native, disjunct populations, or a combination of these. Recently discovered in the Coastal Plain (York and Hanover cos.) and northern Ridge and Valley region (Frederick Co.) of Virginia - suggesting the species is expanding its range.
Fields, clearings, and roadsides, especially on calcareous metasedimentary and mafic substrates. Rare in scattered areas throughout.
Native Status
Not Specified

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