Any of several grasses having a rush-like appearance, especially (North American) one belonging to the genus Sporobolus; also with distinguishing word.
Origin
Late 16th century; earliest use found in John Gerard (c1545–1612), herbalist.
Definition of rush grass in US English:
rush grass
noun
Any of several grasses having a rush-like appearance, especially (North American) one belonging to the genus Sporobolus; also with distinguishing word.
Origin
Late 16th century; earliest use found in John Gerard (c1545–1612), herbalist.