familyAsteraceae

tribeAsteraceae tribe Heliantheae

subtribeAsteraceae (tribe Heliantheae) subtribe Ecliptinae

speciesSilphium asteriscus

varietySilphium asteriscus var. trifoliatum

Silphium asteriscus var. trifoliatum

(Linnaeus) J. A. Clevinger

Novon 14: 276. 2004.

Jennifer A. Clevinger

Common names: Whorled rosinweed

Endemic

Basionym: Silphium trifoliatum Linnaeus Sp. Pl. 2: 920. 1753

Synonyms: Silphium atropurpureum Retzius ex Willdenow Silphium laevigatum Pursh

Treatment appears in FNA Volume 21. Treatment on page 82. Mentioned on page 81.

Plants 75–140 cm. Leaves: basal persistent; cauline mostly whorled (in 3s); faces glabrous or sparsely hairy. Paleae puberulent. Ray florets 11–16. Disc florets 35–90. 2n = 14.

Phenology: Flowering mid summer–early fall.
Habitat: Prairies, meadows, roadsides, along railways
Elevation: 100–900 m

Contents

1 Distribution
2 Discussion
3 Selected References
4 Lower Taxa

Distribution

Generated Map
Legacy Map

Ala., Ga., Ill., Ind., Ky., Md., N.Y., N.C., Ohio, Pa., S.C., Tenn., Va., W.Va.

Discussion

Selected References

None.

Lower Taxa

None.

Silphium asteriscus

Hidden category:

Treatment

Facts

... more about "Silphium asteriscus var. trifoliatum"

Jennifer A. Clevinger +

(Linnaeus) J. A. Clevinger +

Silphium trifoliatum +

Whorled rosinweed +

Ala. +, Ga. +, Ill. +, Ind. +, Ky. +, Md. +, N.Y. +, N.C. +, Ohio +, Pa. +, S.C. +, Tenn. +, Va. + and W.Va. +

100–900 m +

Prairies, meadows, roadsides, along railways +

Illustration copyright

Flora of North America Association +

Yevonn Wilson-Ramsey +

Number of lower taxa

0 +

Flowering mid summer–early fall. +

Publication title

Novon +

Publication year

2004 +

None +

https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse grained fna xml/V19-20-21/V21 189.xml +

Endemic +

Silphium atropurpureum + and Silphium laevigatum +

Silphium asteriscus var. trifoliatum +

Silphium asteriscus +

variety +