Agropyron smithii var. palmeri (Scribner & J.G. Smtih) A. Heller Dataset Database of Vascular Plants of Canada (VASCAN) Rank VARIETY Classification class Equisetopsida order Poales family Poaceae genus Pascopyrum species Pascopyrum smithii Name Homonyms Agropyron smithii var. palmeri (Scribner & J.G. Smtih) A. Heller