Flora of North America species comparison

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Cirsium inamoenum var. davisii
Photo is of parent taxon

Davis' thistle
Involucres

1.5–3.5 cm diam. corollas lavender to rich pink-purple.

Cirsium inamoenum var. davisii
Phenology Flowering summer (Jun–Aug).
Habitat Arid slopes, roadsides, grasslands, sagebrush scrub, dry woodlands, montane forests
Elevation 1400–3100 m (4600–10200 ft)
Distribution
from FNA
ID; NV; UT; WY
[BONAP county map]
Discussion

Variety davisii occurs in the northern Great Basin region and adjacent mountains from northern Nevada and southern Idaho to eastern Wyoming and northern Utah.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 19, p. 135.
Parent taxa Asteraceae > tribe Cardueae > Cirsium > Cirsium inamoenum
Sibling taxa
C. inamoenum var. inamoenum
Synonyms C. davisii
Name authority (Cronquist) D. J. Keil: Sida 21: 214. (2004)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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