Difference between revisions of "Silphium asteriscus var. trifoliatum"
Novon 14: 276. 2004.
Common names: Whorled rosinweed
Endemic
Basionym: Silphium trifoliatum Linnaeus Sp. Pl. 2: 920. 1753
Synonyms: Silphium atropurpureum Retzius ex Willdenow Silphium laevigatum Pursh
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|publication year=2004 | |publication year=2004 | ||
|special status=Endemic | |special status=Endemic | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V21_189.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Ecliptinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Ecliptinae | ||
Latest revision as of 20:10, 5 November 2020
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
Distribution
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.