We don't have synonyms for blue grama yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are blue grass and blue gray.
(n) :
A species of perennial grass, Bouteloua gracilis, native to inland parts of the western and central United States into neighboring areas of Mexico and Canada, especially the northern Great Plains.
(n) :
A species of perennial grass, Bouteloua gracilis, native to inland parts of the western and central United States into neighboring areas of Mexico and Canada, especially the northern Great Plains.