Title: Key to the native perennial grasses : midwest region east of the Great Plains /
Authors: Hitchcock, A. S. 1865-1935.; Hitchcock, A. S. 1865-1935.; Hitchcock, A. S. 1865-1935.; United States.
Publisher: U.S. Soil Conservation Service,
Year: 1968
Subjects: Grasses United States.; Poaceae; Gt. Plains Botany.