Contains 2 accepted taxa overall.

Characteristics
Silphium L.
ROSINWEED
Classification
ASTERALES
Silphium
Citation
SILPHIUM Linnaeus, Sp. Pl. 919. 1753.
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TYPE: Silphium asteriscus Linnaeus Lectotypified by Britton & A. Brown, Ill. Fl. N. U.S., ed. 2. 3: 460. 1913.
Distribution Map Present

This species have been reported in the counties highlighted.

Species
Scientific Name Common Name Herbarium Specimens Status Photos
Silphium asteriscus STARRY ROSINWEED Native
Silphium compositum KIDNEYLEAF ROSINWEED Native
Identification Key
1.  Stem hispid to scabrous; leaf blade unlobed (merely dentate to entire), to 5 cm wide
1.  Stem glabrous; leaf blade usually at least some lobed, rarely unlobed, to 52 cm wide
Genus Synonyms
Synonym Full Citation Basionym Type