Helictotrichon hookeri (Scribn.) Henr.
[= Avenula hookeri]
Annotated by Jack E. Schmautz, 10 Jul 1958.

Montana: Lewis and Clark County: Sun River Elk Range, Lewis & Clark National Forest, INT-MRC. Elev. 4950 ft.
47.5603° N, 112.6157° W; T21N R8W S22 SE 1/4
Coordinate Source: TRS-website.
Slope: 10% E
Soil: Gravelly loam
Vegetation type: Park Grass
Density in tenths: 5
Principal associated plants: Agsp, Danthonia, Feid, Lupinus, Juniperus, horizontalis
Distribution: Mesic grasslands
Abundance: Patchy
Usual size of plant: 12-18"
Perennial
Flowering period: July Herbarium of the Forest Service, U.S. Department of Agriculture. Phenology: Fruits.

Jack E. Schmautz 225, Jul 10, 1958
MONTU, Accession: 52599