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Montana Field Guide

Montana Field Guides

Thick-leaf Groundsel - Senecio crassulus

Native Species

Global Rank: G5
State Rank: S4

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 7

External Links






 
General Description
Fibrous-rooted from a short rhizome. Stems ascending to erect, 20–40 cm. Herbage glabrous. Leaves thick, basal and cauline, becoming sessile above; blades oblanceolate to oblong, 2–12 cm long, serrate. Inflorescence corymbiform of 3 to 12 heads. Heads radiate; involucres 8–12 mm high; phyllaries 8 to 21, glabrous, conspicuously black-tipped. Rays 5 to 13; ligules 8–18 mm long. Disk corollas 7–10 mm long. Achenes 2–4 mm long, glabrous (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Montana Range

Year-round
 


Range Comments
OR to MT south to NV, UT and NM (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 136

(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 meadows, open forest, often near late-melting snow; upper montane, subalpine (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
  • Additional ReferencesLegend:   View Online Publication
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    • Joslin, G.J. 1975. Behavior and environmental selection by Elk (Cervus canadensis nelsoni) during surrmer and fall in the First and Second Yellow Mule drainages, Madison County, Montana. M.Sc. Thesis. Bozeman, Montana: Montana State University, Bozeman. 65 p.
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
    • Martin, S.A. 1985. Ecology of the Rock Creek bighorn sheep herd, Beartooth Mountains, Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 152 p.
    • Saunders, J.K., Jr. 1954. A two-year investigation of the food habits and range use of the Rocky Mountain goat in the Crazy Mountains, Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 22 p.
    • Steerey, W. F. 1979. Distribution, range use and population characteristics of Mule Deer associated with the Schafer Creek winter range, Bridger Mountains, Montana. M.Sc. Thesis. Bozeman, Montana: Montana State University. 119 p.
    • Stoecker, R.E. 1967. A population study of five species of small rodents in the Bridger Mountains of Montana. M.Sc. Thesis. Bozeman, Montana: Montana State University. 32 p.
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Citation for data on this website:
Thick-leaf Groundsel — Senecio crassulus.  Montana Field Guide.  .  Retrieved on , from