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Montana Field Guide

Montana Field Guides

Columbia Monkshood - Aconitum columbianum


Global Rank: G5
State Rank: S4?

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

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General Description
Perennial with a tuberous crown, fibrous roots and hollow stems to 180 cm. Leaves alternate, petiolate; blades 5–15 cm long, deltoid, deeply divided into 5 to 7 toothed lobes. Inflorescence an open leafy-bracteate raceme Flowers irregular; sepals 5, yellow to bluish; uppermost (hood) helmet-like, 15–25 mm high; the lateral pair fan-shaped; the lower pair much narrower; petals 2, concealed in the hood; stamens many, shorter than the sepals; pistils 3 to 5; stamens numerous. Fruit 3 to 5 follicles, 10–15 mm long, glabrous to glandular (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


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

Summary of Observations Submitted for Montana
Number of Observations: 17

(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 to wet meadows, open forest, often along streams; 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:
Columbia Monkshood — Aconitum columbianum.  Montana Field Guide.  .  Retrieved on , from