Achnatherum robustum
Plants
Albert Spear Hitchcock (1865–1935), Mary Agnes Chase (1869–1963), A. H. Baldwin, (Miss) M. D. Baker, Mary Wright Gill (1866-1929), Frank Lamson-Scribner, W. R. Scholl, Theodore Holm, Leta Hughey, Benjamin Y. Morrison, Mrs. George M. Mullett, Frances Carnes Weintraub, Edna May Whitehorn, or possibly another illustrator. · public_domain
About
Achnatherum robustum, commonly known as sleepy grass, is a perennial plant in the Poaceae or grass family.
Summary from Wikipedia
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Growing details and traits for Achnatherum robustum in the Library.
No cultivars in the Library yet — the full profile above covers the species itself.