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Montana Field Guides

Anderson's Aster - Oreostemma alpigenum
Other Names:  Aster alpigenus

Native Species

Global Rank: G5
State Rank: S4
C-value: 4


Agency Status
USFWS:
USFS:
BLM:


 

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General Description
Taprooted perennial with a mostly simple caudex. Stems simple, lax to ascending, 2–10 cm. Herbage glabrous, villous above. Leaves: basal petiolate, linear to oblanceolate, 2–8 cm long, entire; cauline linear 5–30 mm long. Heads solitary, radiate; involucre turbinate to campanulate, 7–11 mm high; phyllaries in 3 or 4 series, green and purple, linear-lanceolate, ciliate, sparsely villous, little overlapping. Ray flowers female, 10 to 45, violet; ligules 7–12 mm long. Disk flowers perfect, yellow; corollas 6–9 mm long; style branches with linear-lanceolate appendages. Pappus of numerous, stramineous, barbellate, capillary bristles. Achenes usually 5- to 10-nerved, ca. 2 mm long (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Our plants are variety haydenii (Porter) G.L. Nesom.

Species Range
Montana Range Range Descriptions

Native
 


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

Habitat
Stony, often sparsely vegetated fellfields, turf, meadows; upper subalpine, alpine (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
  • Literature Cited AboveLegend:   View Online Publication
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
  • Additional ReferencesLegend:   View Online Publication
    Do you know of a citation we're missing?
    • Aho, Ken Andrew. 2006. Alpine and Cliff Ecosystems in the North-Central Rocky Mountains. Ph.D. Dissertation. Bozeman, Montana: Montana State University. 343 p.
    • Hulten, E. 1968. Flora of Alaska and Neighboring Territories. Stanford University Press, Stanford, CA.
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2022. Manual of Montana Vascular Plants, Second Edition. Fort Worth, TX: BRIT Press. viii + 779 p.
    • Murray, D.F. 1980. Threatened and endangered plants of Alaska. U.S. Forest Service and Bureau of Land Management, Washington, D.C. 59 pp.
    • Osmundson, T.W. 2003. Systematics of Rocky Mountain alpine Laccaria (basidiomycota, agaricales, tricholomataceae) and ecology of Beartooth Plateau alpine macromycetes. M.Sc. Thesis. Bozeman, MT: Montana State University. 188 p.
    • Simanonok, M. 2018. Plant-pollinator network assembly after wildfire. Ph.D. Dissertation. Bozeman, MT: Montana State University. 123 p.
    • Simanonok, M.P. and L.A. Burkle. 2019. Nesting success of wood-cavity-nesting bees declines with increasing time since wildfire. Ecology and Evolution 9:12436-12445.
    • Stewart, S.T. 1975. Ecology of the West Rosebud and Stillwater bighorn sheep herds, Beartooth Mountains, Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 130 p.
    • Williams, K.L. 2012. Classification of the grasslands, shrublands, woodlands, forests and alpine vegetation associations of the Custer National Forest portion of the Beartooth Mountains in southcentral Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 376 p.
  • Web Search Engines for Articles on "Anderson's Aster"
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Citation for data on this website:
Anderson's Aster — Oreostemma alpigenum.  Montana Field Guide.  .  Retrieved on , from