Flora of North America species comparison

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Astragalus flavus var. argillosus
Photo is of parent taxon

clay milkvetch
Habit Plants forming loose tufts.
Peduncles

5–10 cm.
Flowers

9–10.5 mm;

calyx 6–10 mm, hirsute, tube 3–4.5 mm;

corolla usually reddish lilac, reddish purple, or blue, rarely white.
Seeds

8–11.

Astragalus flavus var. argillosus
Phenology Flowering Apr–Jul.
Habitat Cretaceous Mancos Shale and Jurassic Summerville, Cedar Mountain, and Morrison formations, on saline clays and silts with salt desert shrubs.
Elevation 1200–1800 m. (3900–5900 ft.)
Distribution
from FNA
UT
Discussion

Variety argillosus is common in east-central Utah.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Astragalus > sect. Ocreati > Astragalus flavus
Sibling taxa
A. flavus var. flavus, A. flavus var. higginsii
Synonyms A. argillosus
Name authority (M. E. Jones) Barneby: Mem. New York Bot. Gard. 13: 401. (1964)
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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