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Montana Field Guide

Montana Field Guides

Slender Milkvetch - Astragalus gracilis


Global Rank: G5
State Rank: S4

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value:

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General Description
Perennial from a widely branched rootstock. Herbage strigose. Stems branched, lax to ascending, 20–50 cm. Leaves with 9 to 13 narrowly oblong leaflets, 5–15 mm long with blunt to emarginate tips, glabrous above; stipules deltoid, 1–4 mm long, distinct. Inflorescence narrow with 10 to 20 ascending flowers, 1 to 2 times as long as the leaves. Flowers lavender; calyx white-strigose; sepals <1 mm long; banner 5–8 mm long, reflexed; keel 4–6 mm long. Legume pendent, ovoid, slightly curved, white-strigose, 6–10 mm long, compressed perpendicular to the septum (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments
MT, ND south to NM, TX and OK (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Habitat
Sandy soil of grasslands, sagebrush steppe; plains, valleys (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Slender Milkvetch — Astragalus gracilis.  Montana Field Guide.  .  Retrieved on , from