Bromus commutatus Schrad. × Bromus hordeaceus L.
Annotated by Leon E. Pavlick, 1987. Remarks: Possible hybrid e.g.

Washington: Klickitat County: Bingen.
45.71495° N, 121.46462° W,
Datum: WGS 84. Uncertainty: 500 meters. Coordinate Source: GeoLocate.
Two different species on this sheet other is Bromus hordeaceaus ssp. hordeaceus. Phenology: Fertile.

Wilhelm N. Suksdorf s.n., May 19, 1892
WTU, Accession: 237875A