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Montana Field Guide

Montana Field Guides

Prairie Junegrass - Koeleria macrantha
Other Names:  Koeleria cristata, Koeleria nitida, Koeleria pyramidata


Global Rank: G5
State Rank: S5

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value:

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General Description
Cool season, perennial bunchgrass. Stems 20–60 cm. Leaves: blades 1–3 mm wide, flat and ascending; sheaths with overlapping margins; ligule membranous. Inflorescence a contracted to occasionally open pyramidal panicle 4–11 cm long. Spikelets 4–5 mm long with 2 to 4 florets; glumes somewhat enclosing the florets. Lemmas awnless or with a very short awn <1 mm long; palea very well developed. Disarticulation above glumes; unit of dispersal the floret or fruit (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
Throughout nearly all of N. America excepting some very southeastern states and very northwestern provinces (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 514

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density

Recency

 

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



Habitat
Low to middle elevations in sagebrush steppe, dry montane meadows, and other open dry sites with high native cover (indicative of infrequent disturbance). (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Prairie Junegrass — Koeleria macrantha.  Montana Field Guide.  .  Retrieved on , from