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Montana Field Guide

Montana Field Guides

Siberian Peashrub - Caragana arborescens

Exotic Species (not native to Montana)

Global Rank: GNR
State Rank: SNA

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 1

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General Description
Many-stemmed shrub to 4 m. Stems branched, pubescent. Leaves often fascicled, becoming glabrate, even-pinnate with 4 to 10 oblong-elliptic leaflets 1–3 cm long with rounded or truncate, mucronate tips; stipules often with nodal spines. Inflorescence of 1 to 4 flowers, fascicled on spur branches. Flowers papilionaceous, yellow; calyx pubescent, 6–7 mm long; sepals ca. 1 mm long; banner ca. 2 cm long, reflexed, barely longer than the wings and keel. Fruit a glabrous, pendent, linear-oblong legume, 3–5 cm long, narrowed to a slender beak; seeds numerous (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Unknown/Undetermined
 


Range Comments
Collected in Missoula County; native to Asia (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 3

(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
Rarely escaping into fields, pastures, roadsides; 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:
Siberian Peashrub — Caragana arborescens.  Montana Field Guide.  .  Retrieved on , from