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

Silphium radula var. radula

Jennifer A. Clevinger
Endemic
Synonyms: Silphium reverchonii Bush Silphium simpsonii var. wrightii
Treatment appears in FNA Volume 21. Treatment on page 80.

Plants 50–250 cm. Basal leaves caducous. Heads to 30. Ray florets 20–30+. Disc florets 125–175. 2n = 14.


Phenology: Flowering summer.
Habitat: Prairies, fencerows, roadsides
Elevation: 0–400 m

Distribution

V21-183-distribution-map.gif

Ark., Kans., La., Mo., Okla., Tex.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Silphium radula var. radula"
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Author
Jennifer A. Clevinger +
Authority
Nuttall +
Distribution
Ark. +, Kans. +, La. +, Mo. +, Okla. +  and Tex. +
Elevation
0–400 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
Trans. Amer. Philos. Soc., n. s. +
Publication year
1840 +
Reference
None +
Source xml
https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse grained fna xml/V19-20-21/V21 183.xml +
Special status
Endemic +
Synonyms
Silphium reverchonii +  and Silphium simpsonii var. wrightii +
Taxon family
Asteraceae +
Taxon name
Silphium radula var. radula +
Taxon parent
Silphium radula +
Taxon rank
variety +
Volume
Volume 21 +