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Montana Field Guide

Montana Field Guides

Shrubby Willowherb - Epilobium suffruticosum

Potential Species of Concern
Native Species

Global Rank: G5
State Rank: S3S4

Agency Status
MNPS Threat Rank:
C-value: 6

External Links

General Description
Perennial from a woody branched caudex. Stems prostrate to ascending, 10–25 cm, branched above. Herbage strigillose. Leaves mostly opposite, sessile, 1–2 cm long, lanceolate, entire. Inflorescence a leafy-bracted raceme. Flowers yellow or white; hypanthium 1–3 mm long; sepals 3–5 mm long; petals 7–9 mm long, 1 slightly larger; stigma 4-lobed. Capsule slightly curved, puberulent, 10–25 mm long; seeds reticulate with a deciduous coma (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments
ID, MT and WY (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 3

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density



(Observations spanning multiple months or years are excluded from time charts)

Gravelly river banks and open slopes in the valley to montane zones.

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Citation for data on this website:
Shrubby Willowherb — Epilobium suffruticosum.  Montana Field Guide.  .  Retrieved on , from