Parthenium integrifolium L.

Locations ofParthenium integrifolium L. in Virginia

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Botanical Name
Parthenium integrifolium L.
Common Name
Common Wild Quinine
Flora of Virginia Name/Status
Parthenium integrifolium L. var integrifolium + P. integrifolium L. var. mabryanum Mears
Variation in number of flower heads and leaf dimensions is the basis for two putative varieties in Virginia: var. integrifolium, and var. mabryanum Mears. Most Virginia plants are var. integrifolium, and the distinctiveness and status of var. mabryanum requires further study.
Dry-mesic to dry, open forests, woodlands, barrens, and clearings; mostly on acidic to moderately basic soils. Frequent in the mountains (except sw. Virginia) and Piedmont; infrequent in the inner Coastal Plain. Var. mabryanum is alleged to occur infrequently in sandhill woodlands and sandy clearings of the se. Virginia Coastal Plain.
Native Status

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