St. Augustine grass vs buffalo grass

St. Augustine grass and buffalo grass both are nouns.

Word	Noun	Adjective	Verb	Adverb
St. Augustine grass	Yes	No	No	No
buffalo grass	Yes	No	No	No

As nouns, St. Augustine grass and buffalo grass are synonyms defined as:

St. Augustine grass and buffalo grass: low mat-forming grass of southern United States and tropical America; grown as a lawn grass

Other synonyms of St. Augustine grass include Stenotaphrum secundatum.

St. Augustine grass (noun)	buffalo grass (noun)
low mat-forming grass of southern United States and tropical America; grown as a lawn grass	short grass growing on dry plains of central United States (where buffalo roam)
	low mat-forming grass of southern United States and tropical America; grown as a lawn grass