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Montana Field Guide

Montana Field Guides

Fireweed - Chamerion angustifolium
Other Names:  Epilobium angustifolium


Global Rank: G5
State Rank: S5

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 3

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General Description
Rhizomatous. Stems unbranched, 20–120 cm. Herbage glabrous below, puberulent in the inflorescence. Leaves narrowly lanceolate, 5–15 cm long. Racemes many-flowered with minute bracts, nodding in bud. Flowers magenta; sepals spreading, 7–15 mm long; petals 10–16 mm long. Capsule 1–8 cm long; the coma 10–17 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Many authors now treat this species in the genus Chamerion.

Species Range
Present
 


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

Summary of Observations Submitted for Montana
Number of Observations: 131

(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
Open slopes, stream banks, avalanche chutes, open forest; valleys to subalpine (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Fireweed — Chamerion angustifolium.  Montana Field Guide.  .  Retrieved on , from