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Montana Field Guide

Montana Field Guides

Coulter Fleabane - Erigeron coulteri

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Native Species

Global Rank: G5
State Rank: S3S4
C-value: 6


Agency Status
USFWS:
USFS:
BLM:


 

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General Description
Fibrous-rooted perennial from a short, sometimes branched rhizome. Stems ascending to erect, 10–50 cm. Herbage glabrate to sparsely strigose. Leaves basal and cauline; blades oblanceolate to ovate, 2–10 cm long, sometimes weakly dentate, sessile and clasping above. Heads 1 to 2, radiate. Involucres hemispheric, 6–10 mm high; phyllaries in 2 or 3 series, minutely glandular, villous with septate hairs. Rays 45 to 140, white; ligules 7–12 mm long. Disk corollas 2–4 mm long. Achenes 1–2 mm long (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

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

Observations in Montana Natural Heritage Program Database
Number of Observations: 6

(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

Ecology
POLLINATORS
The following animal species have been reported as pollinators of this plant species or its genus where their geographic ranges overlap: Bombus bifarius, Bombus centralis, Bombus fervidus, Bombus flavifrons, Bombus huntii, Bombus melanopygus, Bombus mixtus, Bombus rufocinctus, Bombus occidentalis, and Bombus insularis (Thorp et al. 1983, Wilson et al. 2010, Colla and Dumesh 2010, Koch et al. 2012).

References
  • Literature Cited AboveLegend:   View Online Publication
    • Colla, S.R. and S. Dumesh. 2010. The bumble bees of southern Ontario: notes on natural history and distribution. Journal of the Entomological Society of Ontario 141:39-68.
    • Koch, J., J. Strange, and P. Williams. 2012. Bumble bees of the western United States. Washington, DC: USDA Forest Service, Pollinator Partnership. 143 p.
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
    • Thorp, R.W., D.S. Horning, and L.L. Dunning. 1983. Bumble bees and cuckoo bumble bees of California (Hymenoptera: Apidae). Bulletin of the California Insect Survey 23:1-79.
    • Wilson, J.S., L.E. Wilson, L.D. Loftis, and T. Griswold. 2010. The montane bee fauna of north central Washington, USA, with floral associations. Western North American Naturalist 70(2): 198-207.
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Citation for data on this website:
Coulter Fleabane — Erigeron coulteri.  Montana Field Guide.  .  Retrieved on , from