(More fully "blue grama grass") the North American grass Bouteloua gracilis, which grows in distinct tufts and forms an important component of prairie grassland.
Origin
Mid 19th century; earliest use found in The Friend.
Definition of blue grama in US English:
blue grama
noun
(More fully "blue grama grass") the North American grass Bouteloua gracilis, which grows in distinct tufts and forms an important component of prairie grassland.
Origin
Mid 19th century; earliest use found in The Friend.