Classic texts: USDisp 1918.
Achnatherum robustum
Achnatherum robustum (Vasey) Barkworth.
Engl.: sleepy grass.
Bot. syn.: Stipa robusta (Vasey) Scribn., Stipa vaseyi Scribn.
Loco Plants. Crazy Weeds. Aragallus lamberti, Astragalus mollissimus.
Classic texts: USDisp 1918.