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Montana Field Guides

Siskiyou Hawksbeard - Crepis modocensis

Native Species

Global Rank: G4G5
State Rank: S4

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 4

External Links






 
General Description
Taprooted perennial. Stems erect, 10–35 cm. Herbage gray-tomentose; stems yellowish-setose below. Leaf blades lanceolate to ovate, 3–10 cm long, pinnately lobed ½- to 3/4-way to the midvein into linear-lanceolate, dentate, forward-pointing segments; petioles setose. Heads 1 to 9. Involucre turbinate, 9–16 mm high; phyllaries linear-lanceolate, tomentose, black-setose, eglandular. Rays 10 to 60; ligules 7–12 mm long. Achenes dark green to brown, 4–7 mm long, narrowed above but not beaked (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Our plants are subspecies modocensis.

Species Range
Montana Range

Year-round
 


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

Observations in Montana Natural Heritage Program Database
Number of Observations: 74

(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
Sagebrush steppe, grasslands; plains, valleys, montane (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
  • Additional ReferencesLegend:   View Online Publication
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    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
    • Quire, R.L. 2013. The sagebrush steppe of Montana and southeastern Idaho shows evidence of high native plant diversity, stability, and resistance to the detrimental effects of nonnative plant species. M.Sc. Thesis. Bozeman, MT: Montana State University. 124 p.
    • Simanonok, M. 2018. Plant-pollinator network assembly after wildfire. Ph.D. Dissertation. Bozeman, MT: Montana State University. 123 p.
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Citation for data on this website:
Siskiyou Hawksbeard — Crepis modocensis.  Montana Field Guide.  .  Retrieved on , from