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Montana Field Guide

Montana Field Guides

Pumpelly's Brome - Bromus inermis ssp. pumpellianus
Other Names:  Bromus pumpellianus, Bromus inermis var. purpurascens

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Native Species

Global Rank: G5T5
State Rank: SNR

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General Description
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Diagnostic Characteristics
The following combination of characters typically distinguishes subspecies pumpellianus, which is considered native, from subspecies inermis: Lemmas sparsely to densely hairy dorsally and or marginally; nodes and upper leaf blades sometimes hairy; awns usually present and up to 7.5 mm long (Pavlick and Anderton, 2007, in Fl. North America, Vol. 24).

Range Comments
From AK and much of Canada south through NV, CO, NM, NE, MI and NY (Kartesz 2009).

Observations in Montana Natural Heritage Program Database
Number of Observations: 26

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Relative Density



(Observations spanning multiple months or years are excluded from time charts)

  • 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.
    • Eggers, M.J.S. 2005. Riparian vegetation of the Montana Yellowstone and cattle grazing impacts thereon. M.Sc. Thesis. Montana State University, Bozeman, MT. 125 p.
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
    • 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.
    • 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:
Pumpelly's Brome — Bromus inermis ssp. pumpellianus.  Montana Field Guide.  .  Retrieved on , from