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Montana Field Guide

Montana Field Guides

Pinegrass - Calamagrostis rubescens

Native Species

Global Rank: G5
State Rank: S5

Agency Status
MNPS Threat Rank:
C-value: 4

External Links

General Description
Rhizomatous. Stems 60–100 cm. Leaves: blades 2–5 mm wide. Inflorescence a contracted panicle 4–15 cm long. Spikelets 4–4.5 mm long. Lemmas with a bent awn barely surpassing if at all the glume tips, callus hairs >1/2 the lemma length, sometimes less (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range

Range Comments
Throughout much of western North America (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 3842

(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)


  • 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.
    • Matthews, R. F. 2000. Calamagrostis rubescens. In: Fire Effects Information System, [Online}. U. S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer).
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Citation for data on this website:
Pinegrass — Calamagrostis rubescens.  Montana Field Guide.  .  Retrieved on , from