""Revisions of North American Grasses: Isachne, Oplismenus, Echinochloa, and Chaetochloa"" is a botanical reference book written by Albert Spear Hitchcock and published in 1920. The book focuses on the taxonomy and classification of four genera of grasses found in North America: Isachne, Oplismenus, Echinochloa, and Chaetochloa. The author provides detailed descriptions and illustrations of each species within these genera, as well as information...