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Montana Field Guide

Montana Field Guides

Nodding Trisetum - Trisetum canescens

Native Species

Global Rank: G5
State Rank: S4

Agency Status
MNPS Threat Rank:

External Links

General Description
Stems loosely bunched, 40–100 cm. Leaves: blades mostly 5–9 mm wide. Inflorescence a loosely contracted to open panicle 10–25 cm long, the lower branches with clusters of spikelets distinctly set off from rest of inflorescence. Spikelets 7–9 mm long. Lemmas 2 to 4 per spikelet, awns 7–13 mm long, bent, from upper one-half of lemma (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range

Range Comments
Common throughout 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: 102

(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.
    • Pallister, G.L. 1974. The seasonal distribution and range use of bighorn sheep in the Beartooth Mountains, with special reference to the West Rosebud and Stillwater herds. M.Sc. Thesis. Bozeman, MT: Montana State University. 67 p.
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Citation for data on this website:
Nodding Trisetum — Trisetum canescens.  Montana Field Guide.  .  Retrieved on , from