familyFabaceae
subfamilyFabaceae subfam. Faboideae
genusAstragalus
sectionAstragalus sect. Bisulcati
speciesAstragalus bisulcatus
Astragalus bisulcatus var. nevadensis
Leafl. W. Bot. 7: 195. 1954.
Common names: Nevada two-grooved milkvetch
Endemic
Basionym: Astragalus haydenianus var. nevadensis M. E. Jones Zoë 2: 241. 1891
Treatment appears in FNA Volume 11.
Plants decumbent or incurved-ascending, herbage usually pubescent. Leaflets (7–)11–19, 5–27 mm. Racemes (15–)25–45-flowered; axis (3–)6–20 cm in fruit; bracts 1–2.5 mm. Flowers 6.7–9.2 mm; calyx usually pallid, tube 2.8–3.2 mm, lobes 0.7–1.6 mm; corolla ochroleucous, keel tip maculate; banner shorter than keel. Legumes narrowly ellipsoid, 8–12 × 2.5–4 mm, delicately reticulate, white-strigulose; stipe 3–3.7 mm. Seeds 6–8.
Phenology: Flowering May–Jul.
Habitat: Knolls, hillsides, desert pans, on fine-textured white or red substrates, in pinyon, juniper, or sagebrush communities.
Elevation: 1500–2000 m.
Distribution
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Nev.
Discussion
Variety nevadensis is restricted to the northeastern quadrant of Nevada.
Selected References
None.
Lower Taxa
None.
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