Achnatherum lemmonii (Vasey) Barkw. × Achnatherum occidentale ssp. pubescebus
Annotated by M. E. Barkworth, 2004. Remarks: I agree with Maze's indentification of two of these plants.

Washington: Kittitas County: Railroad grate near Cle Elum.
47.19556° N, 120.93806° W,
Datum: WGS 84. Uncertainty: 5000 meters. Coordinate Source: GeoLocate.
Also mounted with Achnatherum lemmonii. Phenology: Fruits.

R. C. Bunn 1228, Jun 16, 1937
WTU, Accession: 54955A