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Montana Field Guide

Montana Field Guides

Pursh's Silky Lupine - Lupinus sericeus


Global Rank: G5
State Rank: S4S5

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 3

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General Description
Perennial from a branched caudex. Stems erect to ascending, 20–60 cm, silky-strigose, branched above. Leaves basal and cauline; lower petioles 3–10 cm long; leaflets 7 to 9, oblanceolate, sericeous on both surfaces, 2–5 cm long with acute tips. Racemes somewhat open, higher than the leaves, 5–15 cm long. Flowers blue; calyx tube 1–2 mm long, villous; upper lip 3–5 mm long, ca. as long as the lower; banner 8–12 mm long, pubescent on much of the back, reflexed 60° or more; wings 9–12 mm long. Legume 2–3 cm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


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

Summary of Observations Submitted for Montana
Number of Observations: 125

(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, woodlands, dry open forest; plains, valleys to subalpine (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Pursh's Silky Lupine — Lupinus sericeus.  Montana Field Guide.  .  Retrieved on , from