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Montana Field Guide

Montana Field Guides

Arctic Willow - Salix arctica
Other Names:  Salix petrophila


Global Rank: G5
State Rank: S4

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 7

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General Description
Mat-forming with trailing stems. Twigs dark purple, sparsely hairy. Leaf blades 7–30 mm long, glaucous beneath, often sparsely hairy, oblanceolate to narrowly elliptic with entire margins. Female catkins emerge with the leaves, 1–5 cm long on leafy branchlets 1–3 cm long; scales brown or black, long-hairy. Capsules pubescent, 4–7 mm long, sessile; style 1–2 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Our plants are variety petraea (Andersson) Bebb.

Species Range
Present
 


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

Summary of Observations Submitted for Montana
Number of Observations: 40

(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
Moist to wet turf, often along streams or where snow accumulates, sometimes moist scree; alpine, upper subalpine (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Arctic Willow — Salix arctica.  Montana Field Guide.  .  Retrieved on , from