This native bunchgrass is somewhat common on the Milton Ranch in the understory of Ponderosa pine forests at the base of rocky outcrops. The inflorescence is partly open and the awns are relatively straight. This site lies along a band of rock outcrop and Ponderosa pine northeast of Roundup, Musselshell County, Montana.

For additional photos and a species diagnosis, see https://www.flickr.com/photos/plant_diversity/sets/72157668333014947/