familyFabaceae
subfamilyFabaceae subfam. Faboideae
genusAstragalus
sectionAstragalus sect. Argophylli
speciesAstragalus zionis
Astragalus zionis var. zionis
Endemic
Treatment appears in FNA Volume 11.
Revision as of 18:52, 12 March 2025 by imported>Volume Importer
Plants mat- or tuft-forming, usually to 2.5 dm wide. Legumes 15–25(–28) × 5.5–9 mm.
Phenology: Flowering Apr–Jun.
Habitat: On sandstone, on sandy and gravelly soils in blackbrush, sagebrush, Ephedra, other mixed desert shrub, sometimes salt desert shrub, mountain brush, ponderosa pine, and riparian communities.
Elevation: 1300–2500 m.
Distribution
Ariz., Nev., N.Mex., Utah.
Discussion
The caudex of var. zionis is often slightly subterranean, being buried in duff or in sand, and the stipules are conspicuously white and white-pilose, mainly concealing the internodes.
Selected References
None.
Lower Taxa
None.
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