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Montana Field Guide

Montana Field Guides

Fringed Blue Aster - Symphyotrichum ciliolatum
Other Names:  Aster ciliolatus

Status Under Review
Native Species

Global Rank: G5
State Rank: SNR

Agency Status
MNPS Threat Rank:
C-value: 5

External Links

General Description
Rhizomatous perennial. Stems erect, 20–100 cm. Herbage glabrate with ciliate petiolate. Leaves: basal and cauline, petiolate; blades lanceolate to narrowly ovate, serrate, cordate to rounded at the base, 3–12 cm long, wing-petiolate, gradually reduced upward. Inflorescence paniculate with few leaf-like bracts. Involucre campanulate, 5–7 mm high; phyllaries linear-lanceolate, acuminate, unequal, glabrous, green, scaious. Rays 14 to 20, blue; ligules 10–15 mm long. Disk flowers 14–25, yellow; corollas 4–6 mm long. Achenes obovoid, 1–2 mm long, glabrous (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Montana Range


Range Comments
YT to QC south to WY, SD, IL and NY (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 104

(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)

Open forest, meadows; valleys, montane; collected in Cascade and Meagher cos. over 100 years ago (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

  • 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.
    • Tuinstra, K. E. 1967. Vegetation of the floodplains and first terraces of Rock Creek near Red Lodge, Montana. Ph.D dissertation. Montana State University, Bozeman 110 pp.
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Citation for data on this website:
Fringed Blue Aster — Symphyotrichum ciliolatum.  Montana Field Guide.  .  Retrieved on , from