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Montana Field Guide

Montana Field Guides

Missouri Milkvetch - Astragalus missouriensis


Global Rank: G5
State Rank: S4S5

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

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General Description
Often nearly stemless perennial with a short-branched caudex. Herbage with dense, appressed, dolabriform hairs. Stems 1–8 cm, ascending to erect. Leaves with 9 to 17 elliptic leaflets, 5–15 mm long with rounded tips; stipules lanceolate, 2–6 mm long, distinct. Inflorescence longer than the leaves, short, dense with 3 to 12 spreading to ascending flowers, often prostrate in fruit. Flowers lavender; calyx black- and/or white-strigose; sepals 3–5 mm long; banner 15–22 mm long, moderately reflexed; keel 14–20 mm long. Legume linear-oblong with a subulate tip, 15–27 mm long, strigillose, turgid, becoming leathery (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Our plants are variety missouriensis.

Species Range
Present
 


Range Comments
AB to MN south to UT, NM and TX (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 81

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density

Recency

 

(Observations spanning multiple months or years are excluded from time charts)



Habitat
Grasslands, sagebrush steppe, pine woodlands; 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:
Missouri Milkvetch — Astragalus missouriensis.  Montana Field Guide.  .  Retrieved on , from