Silphium integrifolium var. integrifolium
Synonyms: Silphium integrifolium var. deamii Settle & Fisher Silphium integrifolium var. neglectum
Treatment appears in FNA Volume 21. Treatment on page 80.
Revision as of 19:35, 16 December 2019 by FNA>Volume Importer
Plants 40–200 cm. Leaves: blades scabrous, pilose, hispid, or glabrous. Phyllaries: abaxial faces usually hispid, pilose, or scabrous, rarely glabrous. Ray florets 12–22. Disc florets 70–140. 2n = 14.
Phenology: Flowering mid summer–early fall.
Habitat: Prairies, along roads and railroads
Elevation: 50–600 m
Distribution
Ala., Ark., Ill., Ind., Iowa, Kans., Ky., La., Mich., Miss., Mo., Nebr., Okla., S.Dak., Tenn., Wis.
Discussion
Selected References
None.
Lower Taxa
None.