familyAsteraceae
tribeAsteraceae tribe Heliantheae
subtribeAsteraceae (tribe Heliantheae) subtribe Ecliptinae
genusSilphium
speciesSilphium radula
varietySilphium radula var. gracile

Silphium radula var. gracile

(A. Gray) J. A. Clevinger

Novon 14: 277. 2004.

Jennifer A. Clevinger
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.

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

Distribution

V21-184-distribution-map.gif

La., Tex.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Silphium radula var. gracile"
RDF feed
Author
Jennifer A. Clevinger +
Authority
(A. Gray) J. A. Clevinger +
Basionyms
Silphium gracile +
Common name
Slender rosinweed +
Distribution
La. +  and Tex. +
Elevation
0–300 m +
Habitat
Prairies, fencerows, roadsides +
Illustration copyright
Flora of North America Association +
Illustrator
Yevonn Wilson-Ramsey +
Number of lower taxa
0 +
Phenology
Flowering summer. +
Publication title
Novon +
Publication year
2004 +
Reference
None +
Source xml
https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse grained fna xml/V19-20-21/V21 184.xml +
Special status
Endemic +
Synonyms
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 +
Taxon family
Asteraceae +
Taxon name
Silphium radula var. gracile +
Taxon parent
Silphium radula +
Taxon rank
variety +
Volume
Volume 21 +