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Montana Field Guide

Montana Field Guides

Small Enchanter's-nightshade - Circaea alpina


Global Rank: G5
State Rank: S4

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

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General Description
Rhizomatous perennial. Stems erect, 5–30 cm. Herbage glabrous to strigose, glandular. Leaves all cauline, opposite, petiolate; the blades simple, 1–8 cm long, ovate, entire to serrate. Inflorescence terminal and axillary, minutely bracteate racemes. Flowers white, 2-merous; hypanthium ca. 0.5 mm long; sepals 1–2 mm long, reflexed; petals 2-lobed, 1–2 mm long; stamens 2. Fruit an obovoid 1-celled capsule, 1–2 mm long, with hooked hairs; seed solitary (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Montana plants are subspecies alpina and pacifica (Asch & Magnus) Raven.

Species Range
Present
 


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

Summary of Observations Submitted for Montana
Number of Observations: 39

(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
Moist forest, thickets, often in moderately disturbed soil; 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:
Small Enchanter's-nightshade — Circaea alpina.  Montana Field Guide.  .  Retrieved on , from