blackseed vs Sporobolus poiretii

blackseed and Sporobolus poiretii both are nouns.

Word	Noun	Adjective	Verb	Adverb
blackseed	Yes	No	No	No
Sporobolus poiretii	Yes	No	No	No

As nouns, blackseed and Sporobolus poiretii are synonyms defined as:

blackseed 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 blackseed include carpet grass, smut grass.

blackseed (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