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Montana Field Guide

Montana Field Guides

Clavate-fruit Willowherb - Epilobium clavatum
Other Names:  Epilobium alpinum var. clavatum


Global Rank: G5
State Rank: SNR

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

External Links






 
General Description
Perennial from dark, wiry roots without turions. Stems ascending, 3–12 cm. Herbage sparsely strigillose, glandular above. Leaves opposite, sessile to short-petiolate; the blades ovate to elliptic, entire to weakly dentate, 5–20 mm long. Inflorescence a few-flowered, leafy-bracted raceme. Flowers pink to purple; hypanthium ca. 1 mm long, sparsely glandular; sepals, 2–3 mm long; petals 4–7 mm long. Capsule pedicelate, narrowly clavate, 2–4 cm long, glandular-puberulent; seeds minutely papillose with a deciduous coma (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

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

Habitat
Moist to wet, stony soil of moraine, talus slopes; subalpine, alpine (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Clavate-fruit Willowherb — Epilobium clavatum.  Montana Field Guide.  .  Retrieved on , from