carpet grass vs Sporobolus poiretii

carpet grass and Sporobolus poiretii both are nouns.

Word	Noun	Adjective	Verb	Adverb
carpet grass	Yes	No	No	No
Sporobolus poiretii	Yes	No	No	No

As nouns, carpet grass and Sporobolus poiretii are synonyms defined as:

carpet grass and Sporobolus poiretii: grass native to West Indies but common in southern United States having tufted wiry stems often infested with a dark fungus

Other synonyms of carpet grass include blackseed, smut grass.

carpet grass (noun)	Sporobolus poiretii (noun)
grass native to West Indies but common in southern United States having tufted wiry stems often infested with a dark fungus	grass native to West Indies but common in southern United States having tufted wiry stems often infested with a dark fungus