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Montana Field Guide

Montana Field Guides

Tall Groundsel - Senecio serra


Global Rank: G5
State Rank: S4

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

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General Description
Plants from a branched caudex. Stems erect, 40–150 cm. Herbage glabrate. Leaves cauline, short-petiolate, gradually reduced upward; blades linear-lanceolate to lanceolate, cuneate-based, 5–15 cm long, finely serrate. Inflorescence paniculate with 30 to 90 heads. Heads radiate; involucres 6–7 mm high; phyllaries 8 to 13, glabrous, dark-tipped. Rays 5 to 8; ligules 4–8 mm long. Disk flowers 6–8 mm long. Achenes 2–4 mm long, glabrous (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Our plants are variety serra.

Species Range
Present
 


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

Summary of Observations Submitted for Montana
Number of Observations: 17

(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
Tall herb meadows, open forest, woodlands, thickets, often along streams; valleys to montane (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Tall Groundsel — Senecio serra.  Montana Field Guide.  .  Retrieved on , from