Bent Milkvetch - Astragalus inflexus
MNPS Threat Rank
Cushion-forming from a branched caudex. Herbage silky-strigose with dolabriform hairs. Stems <3 cm long, clothed in stipules. Leaves trifoliolate; leaflets oblanceolate, 3–10 mm long, acute; stipules hyaline, 2–7 mm long, united behind the petiole. Inflorescence of 1 or 2 flowers, shorter than leaf petioles. Flowers ochroleucus; sepals 3–4 mm long; calyx white-sericeous; banner slightly reflexed, 12–15 mm long; keel 8–12 mm long, purple-tipped. Legume ascending, ovoid, 4–8 mm long, sericeous, hidden among leaves (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
Similar to Astragalus purshii, from which it differs in having longer, more ascending stems (stems over 1.5dm). It also has longer calyx teeth than A. purshii (>4mm). Species of Oxytropis may appear similar, but lack elongated, leafy stems.
MT to NE, south to CO (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Observations in Montana Natural Heritage Program Database
Number of Observations:
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Sagebrush steppe and sparsely vegetated slopes.
- Additional ReferencesLegend: View Online Publication
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- Lesica, P., M. T. Lavin, and P. F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.