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Montana Field Guide

Montana Field Guides

Glandular Willowherb - Epilobium halleanum
Other Names:  Epilobium glandulosum [in part]


Global Rank: G5
State Rank: SNR

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 4

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General Description
Perennial with turions on fine horizontal roots. Stems erect, 5–50 cm. Herbage sparsely puberulent, glandular above. Leaves opposite, mostly sessile, narrowly elliptic, entire to serrulate, 2–8 cm long. Inflorescence a few-flowered raceme, nodding in bud. Flowers white to pink; hypanthium 0.5–1 mm long; sepals glabrous to glandular-puberulent, 1–2 mm long; petals 2–4 mm long. Capsule pedicelate, 15–45 mm long, glabrous or glandular-hairy; seeds reticulate or papillose with a deciduous coma (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

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

Habitat
Wet meadows, along streams, wetlands, moist grasslands, rocky slopes; montane, subalpine (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Glandular Willowherb — Epilobium halleanum.  Montana Field Guide.  .  Retrieved on , from