Elymus aristatus × Elymus macounii
PNW
MT
1 specimens from 1 herbaria:
Montana (1)
Rosebud (1)
Elymus aristatus Merr. × Elymus macounii Vasey
Remarks: = E. glaucus X H. modosum(?).

Montana: Rosebud County: Along Tongue River above dam at Brewster Arnold Ranch 3 miles southwest of Birney. Elev. 3200 ft.
Wet soil. Phenology: Fruits.

H. R. Bennett s.n., Jul 28, 1955
WTU, Accession: 180628