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Montana Field Guide

Montana Field Guides

Small Lupine - Lupinus pusillus


Global Rank: G5
State Rank: SNR

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 5

External Links






 
General Description
Taprooted annual. Stems erect, 5–20 cm, spreading-villous, often branched at the base. Leaves cauline; petioles 1–5 cm long; leaflets 5 to 7, narrowly oblong, glabrous above, sparsely villous beneath, 1–3 cm long with rounded tips. Racemes somewhat open, ca. as high as the leaves, 2–6 cm long. Flowers blue; calyx tube ca. 2 mm long, villous; upper lip ca. 1 mm long; lower lip much longer; banner 5–9 mm long, glabrous; reflexed ca. 45°; wings 7–10 mm long. Legume 10–15 mm long with 2 seeds and a flattened beak 1–3 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Our plants are variety pusillus.

Species Range
Present
 


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

Summary of Observations Submitted for Montana
Number of Observations: 19

(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 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:
Small Lupine — Lupinus pusillus.  Montana Field Guide.  .  Retrieved on , from