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Montana Field Guide

Montana Field Guides

Alpine Willowherb - Epilobium anagallidifolium
Other Names:  Epilobium alpinum [in part]


Global Rank: G5
State Rank: S4

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 5

External Links






 
General Description
Perennial often forming loose mats from fine, white roots. Stems often clustered, ascending, 2–12 cm. Herbage glabrate. Leaves opposite, short-petiolate; the blades 6–25 mm long, oblanceolate to narrowly elliptic, entire. Inflorescence a leafy-bracted, few-flowered raceme. Flowers pink to purple; hypanthium ca. 1 mm long, glabrate; sepals erect, ca. 2 mm long; petals 3–4 mm long. Capsule pedicelate, linear, 17–36 mm long, glabrate; seeds minutely papillose with a deciduous coma (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


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

Summary of Observations Submitted for Montana
Number of Observations: 34

(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
Wet, gravelly, often mossy soil of seeps, meadows, along streams, often near melting snow; alpine, subalpine (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

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