Etymology: Hordeum: ancient Latin name for barley
Plants: perennial grass
Conservation Status: Introduced - naturalized
Flora of North America: Flora of North America Floristic Rating: Wetland Indicator = FAC+ USDA Plants Database: Federal Distribution and detailed information including photos Grasses of Iowa: Detailed photographs, descriptions, maps Canada Agriculture and Agri-Food
Alberta Government: "The identification of certain native and naturalized grasses by their vegetative characters", S.E. Clarke, J.A. Campbell and W. Shevkenek. 1950.
(Publication no. 762 ; Technical bulletin no. 50). Drawings, descriptions. USDA Agricultural Research Service (ARS): Images of seeds, fruits, embryos, etc.