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Montana Field Guide

Montana Field Guides

Arrow-leaf Rattlesnake-root - Prenanthes sagittata


Global Rank: G4
State Rank: S4

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

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General Description
Stems erect, usually simple 15–70 cm. Herbage glabrous. Leaf blades sagittate, dentate to lobed on the lower half, 3–15 cm long. Inflorescence racemose; heads nodding in fruit. Involucre 7–13 mm high; phyllaries glabrous. Rays 7 to 20, white; ligules 7–9 mm long. Achenes ca. 5 mm long; pappus tawny (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
BC, AB, ID and MT (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 11

(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 soil of thickets, wet meadows, open forest, especially 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:
Arrow-leaf Rattlesnake-root — Prenanthes sagittata.  Montana Field Guide.  .  Retrieved on , from