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Montana Field Guide

Montana Field Guides

Prairie Bluegrass - Poa arida
Other Names:  Poa glaucifolia

Native Species

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

Agency Status


External Links

General Description
Rhizomatous perennial sometimes loosely bunched. Stems 20–60 cm. Leaves: blades 2–4 mm wide, mostly on stem towards stem base; ligules 2–4 mm long. Inflorescence usually a narrow panicle, less commonly open, 5–11 cm long. Spikelets 4–7 mm long. Lemmas lightly hairy on the keel and marginal veins (Lavin in Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Montana Range


Range Comments
Primarily of the Great Lakes and Great Plains regions, and east slope of the Rocky Mountains (Lavin in Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 157

(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)


  • 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?
    • Grove, A.J. 1998. Effects of Douglas fir establishment in southwestern Montana mountain big sagebrush communities. M. Sc.Thesis. Bozeman, MT: Montana State University. 150 p.
    • Joslin, G.J. 1975. Behavior and environmental selection by Elk (Cervus canadensis nelsoni) during surrmer and fall in the First and Second Yellow Mule drainages, Madison County, Montana. M.Sc. Thesis. Bozeman, Montana: Montana State University, Bozeman. 65 p.
    • Seipel, T.F. 2006. Plant species diversity in the sagebrush steppe of Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 87 p.
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Citation for data on this website:
Prairie Bluegrass — Poa arida.  Montana Field Guide.  .  Retrieved on , from