Search Field Guide
Advanced Search
Montana Field Guide

Montana Field Guides

Narrowleaf Milkvetch - Astragalus pectinatus


Global Rank: G5
State Rank: S4

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

External Links






 
General Description
Rhizomatous perennial. Herbage strigose with dolabriform hairs. Stems ascending, zig-zag, 10–20 cm. Leaves with 5 to 15, obovate leaflets, 5–15 mm long with blunt to rounded tips; lower stipules connate 5–10 mm long. Inflorescence barely longer than the leaves, crowded with 15 to 40 spreading flowers. Flowers ochroleucus; calyx black- and/or white-strigose; sepals 1–3 mm long; banner 10–15 mm long, becoming moderately reflexed; keel 10–13 mm long. Legume ascending, linear-oblong, weakly villous, leathery, 10–16 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
Endemic to central WY and adjacent Carbon County, MT (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 43

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

References
Login Logout
Citation for data on this website:
Narrowleaf Milkvetch — Astragalus pectinatus.  Montana Field Guide.  .  Retrieved on , from