Difference between revisions of "Silphium asteriscus var. latifolium"
Novon 14: 276. 2004.
Basionym: Silphium trifoliatum var. latifolium A. Gray in A. Gray et al, Syn. Fl. N. Amer. 1(2): 241. 1884
Synonyms: Silphium confertifolium Small Silphium glabrum Eggert
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|name=Silphium trifoliatum var. latifolium | |name=Silphium trifoliatum var. latifolium | ||
|authority=A. Gray | |authority=A. Gray | ||
| + | |rank=variety | ||
|publication_title=in A. Gray et al, Syn. Fl. N. Amer. | |publication_title=in A. Gray et al, Syn. Fl. N. Amer. | ||
|publication_place=1(2): 241. 1884 | |publication_place=1(2): 241. 1884 | ||
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|name=Silphium confertifolium | |name=Silphium confertifolium | ||
|authority=Small | |authority=Small | ||
| + | |rank=species | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Silphium glabrum | |name=Silphium glabrum | ||
|authority=Eggert | |authority=Eggert | ||
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Ecliptinae;Silphium;Silphium asteriscus;Silphium asteriscus var. latifolium | |hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Ecliptinae;Silphium;Silphium asteriscus;Silphium asteriscus var. latifolium | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Silphium asteriscus var. latifolium | name=Silphium asteriscus var. latifolium | ||
| − | |||
|authority=(A. Gray) J. A. Clevinger | |authority=(A. Gray) J. A. Clevinger | ||
|rank=variety | |rank=variety | ||
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|publication year=2004 | |publication year=2004 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V19-20-21/V21_190.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Ecliptinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Ecliptinae | ||
Revision as of 20:35, 16 December 2019
Plants 50–150 cm. Leaves: basal persistent or caducous; cauline mostly opposite; faces glabrous or sparsely hairy. Paleae puberulent. Ray florets 12–17. Disc florets 35–130.
Phenology: Flowering mid summer–early fall.
Habitat: Fields, roadsides, disturbed areas
Elevation: 100–900 m
Distribution
Ala., Ga., Ky., La., Miss., N.C., S.C., Tenn., Va., W.Va.
Discussion
Silphium confertifolium has persistent basal leaves and a diminutive stature that is due to environmental variation; it is best included in S. asteriscus var. latifolium.
Selected References
None.
Lower Taxa
None.