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

Silphium integrifolium var. laeve

Torrey & A. Gray

Fl. N. Amer. 2: 279. 1842.

Jennifer A. Clevinger
Endemic
Basionym: Silphium speciosum Nuttall Trans. Amer. Philos. Soc., n.s. 7: 341. 1840
Treatment appears in FNA Volume 21. Treatment on page 80.

Plants 100–150 cm. Leaves: blades glabrous. Phyllaries: abaxial faces glabrous. Ray florets 20–36+. Disc florets 130–225. 2n = 14.


Phenology: Flowering mid summer–early fall.
Habitat: Prairies, along roads and railroads
Elevation: 100–600 m

Distribution

V21-181-distribution-map.gif

Ont., Ark., Iowa, Kans., Mo., Nebr., N.Mex., Okla., Tex., Wyo.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Silphium integrifolium var. laeve"
RDF feed
Author
Jennifer A. Clevinger +
Authority
Torrey & A. Gray +
Basionyms
Silphium speciosum +
Distribution
Ont. +, Ark. +, Iowa +, Kans. +, Mo. +, Nebr. +, N.Mex. +, Okla. +, Tex. +  and Wyo. +
Elevation
100–600 m +
Habitat
Prairies, along roads and railroads +
Illustration copyright
Flora of North America Association +
Illustrator
Yevonn Wilson-Ramsey +
Number of lower taxa
0 +
Phenology
Flowering mid summer–early fall. +
Publication title
Fl. N. Amer. +
Publication year
1842 +
Reference
None +
Source xml
https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse grained fna xml/V19-20-21/V21 181.xml +
Special status
Endemic +
Synonyms
Undefined (tribe Undefined) subtribe Enceliinae +, Undefined (tribe Undefined) subtribe Engelmanniinae +, Undefined (tribe Undefined) subtribe Spilanthinae +, Undefined (tribe Undefined) subtribe Verbesininae +  and Undefined (tribe Undefined) subtribe Zinniinae +
Taxon family
Asteraceae +
Taxon name
Silphium integrifolium var. laeve +
Taxon parent
Silphium integrifolium +
Taxon rank
variety +
Volume
Volume 21 +