[grah-muh] 
| any grass of the genus Bouteloua, of South America and western North America, as B. gracilis (blue grama). |
| gra·ma also gram·ma (grä'mə, grām'ə) n. Any of various grasses of the genus Bouteloua of western North America and South America, forming dense tufts or mats and often used as pasturage. [American Spanish, from Spanish, Bermuda grass, quitch grass, from Latin grāmen, grāmin-, grass.] |