Silphium radula var. gracile

(A. Gray) J. A. Clevinger

Novon 14: 277. 2004.

Common names: Slender rosinweed
Endemic
Basionym: Silphium gracile A. Gray Proc. Amer. Acad. Arts 8: 653. 1873
Treatment appears in FNA Volume 21. Treatment on page 81. Mentioned on page 80.
Revision as of 20:57, 27 May 2020 by imported>Volume Importer

Plants 30–100 cm. Basal leaves persistent. Heads to 15. Ray florets 12–18. Disc florets 100–150. 2n = 14.


Phenology: Flowering summer.
Habitat: Prairies, fencerows, roadsides
Elevation: 0–300 m

Discussion

Selected References

None.

Lower Taxa

None.
Jennifer A. Clevinger +
(A. Gray) J. A. Clevinger +
Silphium gracile +
Slender rosinweed +
La. +  and Tex. +
0–300 m +
Prairies, fencerows, roadsides +
Flowering summer. +
Undefined (tribe Undefined) subtribe Enceliinae +, Undefined (tribe Undefined) subtribe Engelmanniinae +, Undefined (tribe Undefined) subtribe Spilanthinae +, Undefined (tribe Undefined) subtribe Verbesininae +  and Undefined (tribe Undefined) subtribe Zinniinae +
Silphium radula var. gracile +
Silphium radula +
variety +