Andropogon hallii Hack.
[= Andropogon gerardii ssp. hallii]
Annotated by R. R. Halse.

Montana: Powder River County: Custer National Forest; along U.S. Hwy. 212 at its junction with F.S. Road 4425; ca. 27.4 miles west of Broadus; near milepost 79. Elev. 1065 m.
45.55572° N, 105.95918° W
Datum: WGS 84.
Associated taxa: Pinus, Artemisia, Linum, Agropyron cristatum, Medicago, Achillea, Ambrosia. Plants perennial, rhizomatous, glaucous. Phenology: Fertile.

R. R. Halse 8299, Aug 1, 2011
SRP, Accession: 45211