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Montana Field Guide

Montana Field Guides

White Prairie Aster - Symphyotrichum falcatum
Other Names:  Aster falcatus

Native Species

Global Rank: G5
State Rank: S5

Agency Status
MNPS Threat Rank:
C-value: 3

External Links

General Description
Perennial from rhizomes or a branched caudex. Stems ascending to erect, 15–70 cm. Herbage curly-puberulent. Leaves cauline, linear, sessile or subsessile, entire, 2–5 cm long, the lowest deciduous. Inflorescence open, leafy-paniculate with numerous heads; peduncles puberulent. Involucre campanulate, 5–8 mm high; phyllaries spreading, linear-oblanceolate, mucronate, short-hispid, green and recurved above, white below. Rays 20 to 35, white; ligules 4–7 mm long. Disk flowers 25–40, yellow; corollas 3–5 mm long. Achenes obconic, 2–3 mm long, brown, strigose (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Montana Range


Range Comments
AK to MB south to AZ, TX and IA (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 280

(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)

Grasslands, dry meadows; plains, valleys, montane (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

  • Additional ReferencesLegend:   View Online Publication
    Do you know of a citation we're missing?
    • Chadde, S.W. 1985. Initial recovery patterns of southwestern Montana foothill range. M.Sc. Thesis. Bozeman, MT: Montana State University. 103 p.
    • Cope, M.G. 1992. Distribution, habitat selection and survival of transplanted Columbian Sharp-tailed Grouse (Tympanuchus phasianellus columbianus) in the Tobacco Valley, Montana. M.Sc. Thesis. Bozeman, Montana: Montana State University. 60 p.
    • Gobielle, J. 1992. The effects of fire on Merriam's turkey broad habitat in southeastern Montana. M.S. thesis, Montana State University, Bozeman. 61 pp.
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
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Citation for data on this website:
White Prairie Aster — Symphyotrichum falcatum.  Montana Field Guide.  .  Retrieved on , from