Search Field Guide
Advanced Search
Montana Field Guide

Montana Field Guides

Sweet Marsh Ragwort - Senecio hydrophiloides
Other Names:  Senecio foetidus


Global Rank: G5
State Rank: S4

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

External Links






 
General Description
Fibrous-rooted. Stems erect, 30–90 cm, sometimes clustered. Herbage glabrate to obscurely arachnoid on the stem. Leaves basal and cauline, narrower upward; blades lanceolate to elliptic, 4–15 cm long, usually serrate. Inflorescence corymbiform of 15 to 30 heads. Heads radiate; involucres 5–8 mm high; phyllaries 8–21, glabrous, black-tipped. Rays ca. 8; ligules 4–9 mm long. Disk corollas 5–7 mm long. Achenes ca. 3 mm long, glabrous (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
BC, AB south to CA, NV, UT and WY (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
Wet meadows, moist open forest, thickets; valleys, montane (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
Login Logout
Citation for data on this website:
Sweet Marsh Ragwort — Senecio hydrophiloides.  Montana Field Guide.  .  Retrieved on , from