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

Silphium perfoliatum var. connatum

(Linnaeus) Cronquist

Brittonia 29: 223. 1977.

Jennifer A. Clevinger
Endemic
Basionym: Silphium connatum Linnaeus Mant. Pl., 574. 1771
Synonyms: Silphium perfoliatum subsp. connatum (Linnaeus) Cruden
Treatment appears in FNA Volume 21. Treatment on page 79.

Stems glabrous or sparsely scabrous. Peduncles glabrous. 2n = 14.


Phenology: Flowering summer–early fall.
Habitat: River bottoms
Elevation: 50–500 m

Distribution

V21-176-distribution-map.gif

N.C., Va., W.Va.

Discussion

Variety connatum is known only from New River Valley.

Selected References

None.

Lower Taxa

None.
... more about "Silphium perfoliatum var. connatum"
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Author
Jennifer A. Clevinger +
Authority
(Linnaeus) Cronquist +
Basionyms
Silphium connatum +
Distribution
N.C. +, Va. +  and W.Va. +
Elevation
50–500 m +
Habitat
River bottoms +
Illustration copyright
Flora of North America Association +
Illustrator
Yevonn Wilson-Ramsey +
Number of lower taxa
0 +
Phenology
Flowering summer–early fall. +
Publication title
Brittonia +
Publication year
1977 +
Reference
None +
Source xml
https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse grained fna xml/V19-20-21/V21 176.xml +
Special status
Endemic +
Synonyms
Silphium perfoliatum subsp. connatum +
Taxon family
Asteraceae +
Taxon name
Silphium perfoliatum var. connatum +
Taxon parent
Silphium perfoliatum +
Taxon rank
variety +
Volume
Volume 21 +