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Montana Field Guide

Montana Field Guides

Thick-stem Aster - Eurybia integrifolia
Other Names:  Aster integrifolius

Native Species

Global Rank: G5
State Rank: S4S5

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

External Links






 
General Description
Perennial from a caudex or short rhizome. Stems sometimes clustered, ascending to erect, 15–60 cm. Herbage: leaves ciliate to pubescent; stems glandular-puberulent. Leaves basal and cauline, petiolate; blades lanceolate to ovate, entire, 2–15 cm long, reduced and sessile upwards. Inflorescence usually narrow, racemose to corymbiform with few to several heads; peduncles stipitate glandular. Involucre campanulate, 7–12 mm high; phyllaries oblanceolate to linear-lanceolate, glandular, ciliate, purple-tipped, white below. Rays 8 to 27; ligules 8–12 mm long. Disk flowers 20 to 50; corolla 6–8 mm long. Achenes fusiform, 4–5 mm long, pubescent (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Montana Range

Year-round
 


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

Observations in Montana Natural Heritage Program Database
Number of Observations: 117

(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
Grasslands, dry meadows, sagebrush steppe, talus; montane, subalpine (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Ecology
POLLINATORS
The following animal species have been reported as pollinators of this plant species or its genus where their geographic ranges overlap: Bombus vagans, Bombus ternarius, and Bombus terricola (Colla and Dumesh 2010).

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.
  • Additional ReferencesLegend:   View Online Publication
    Do you know of a citation we're missing?
    • Ament, R.J. 1995. Pioneer Plant Communities Five Years After the 1988 Yellowstone Fires. M.Sc. Thesis. Bozeman, MT: Montana State University. 216 p.
    • Dale, D. 1973. Effects of trail use under forests in the Madison Range, Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 96 pp.
    • Fogelsong, M.L. 1974. Effects of fluorides on Peromyscus maniculatus in Glacier National Park. M.Sc. Thesis. Bozeman, Montana: Montana State University. 52 p.
    • Fultz, J.E. 2005. Effects of shelterwood management on flower-visiting insects and their floral resources. M.Sc. Thesis. Bozeman, MT: Montana State University. 163 p.
    • Jones, W. W. 1901. Preliminary flora of Gallatin County. M.S. Thesis. Bozeman, MT: Montana State College. 78 pp.
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
    • Matlock-Cooley, S.J. 1993. Interaction between Deermice, Antelope Bitterbrush, and cattle in southwest Montana. M.Sc. Thesis. Bozeman, MT: Montana State University 84 p.
    • Mealey, S.P. 1975. The natural food habits of free ranging grizzly bears in Yellowstone National Park, 1973-1974. M.Sc. Thesis. Bozeman, MT: Montana State University. 158 p.
  • Web Search Engines for Articles on "Thick-stem Aster"
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Citation for data on this website:
Thick-stem Aster — Eurybia integrifolia.  Montana Field Guide.  .  Retrieved on , from