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Montana Field Guide

Montana Field Guides

Fremont's Ragwort - Senecio fremontii


Global Rank: G5
State Rank: S4

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

External Links






 
General Description
Plants from a branched caudex. Stems prostrate to ascending, 4–25 cm. Herbage glabrous, sometimes purplish. Leaves cauline little reduced upward; blades oblong to obovate, mostly crenate to dentate, 5–30 mm long. Inflorescence of 1(2) head. Heads radiate; involucres 6–12 mm high; phyllaries ca. 13, glabrous. Rays ca. 8; ligules 5–12 mm long. Disk corollas 6–9 mm long, slender. Achenes glabrous to strigose, 2–4 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Our plnats are variety fremontii.

Species Range
Present
 


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

Summary of Observations Submitted for Montana
Number of Observations: 12

(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

References
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Citation for data on this website:
Fremont's Ragwort — Senecio fremontii.  Montana Field Guide.  .  Retrieved on , from