Silphium asteriscus L.

Locations ofSilphium asteriscus L. in Virginia

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Botanical Name
Silphium asteriscus L.
Common Name
Rosin Weed
Flora of Virginia Name/Status
Silphium asteriscus L.
The map of Silphium trifoliatum sensu lato in Atlas III is reproduced here to show the more complete distribution of Silphium asteriscus than we are presently able to show with the individual variety maps.
As a whole, the species inhabits dry-mesic to dry (occasionally mesic) open forests, woodlands, barrens, riverside prairies, clearings, old fields, meadows, and road banks; it is especially common in base-rich soils. The species is frequent in the mountains and Piedmont, infrequent in the Coastal Plain. Habitat details for infraspecific taxa are provided with the varietal maps.
Native Status

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