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Montana Field Guide

Montana Field Guides

Common Groundsel - Senecio vulgaris
Other Names:  Old-Man-in-the-Spring, Common Ragwort

Non-native Species

Global Rank: GNR
State Rank: SNA

Agency Status
MNPS Threat Rank:
C-value: 0

External Links

General Description
Taprooted annual. Stems erect, sometimes branched, 10–50 cm. Herbage sparsely villous. Leaves basal and cauline; blades oblong to oblanceolate; dentate to pinnately lobed, sessile upward, 1–5 cm long. Inflorescence leafy-paniculate with 5 to 15 heads. Heads discoid; involucres narrow, 5–9 mm high; phyllaries ca. 21, glabrous. Disk corollas 4–6 mm long. Achenes ca. 2 mm, sparsely strigose (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Montana Range


Range Comments
Introduced throughout North America; native to Eurasia (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 13

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density



(Observations spanning multiple months or years are excluded from time charts)


  • Additional ReferencesLegend:   View Online Publication
    Do you know of a citation we're missing?
    • Fuller, W.L. 1997. Elk management strategies for sustainable beef cattle enterprises. M.Sc. Thesis. Bozeman, MT: Montnaa State University. 92 p.
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
  • Web Search Engines for Articles on "Common Groundsel"
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Citation for data on this website:
Common Groundsel — Senecio vulgaris.  Montana Field Guide.  .  Retrieved on , from