yellow nutgrass vs Cyperus esculentus

yellow nutgrass and Cyperus esculentus both are nouns.

Word	Noun	Adjective	Verb	Adverb
yellow nutgrass	Yes	No	No	No
Cyperus esculentus	Yes	No	No	No

As nouns, yellow nutgrass and Cyperus esculentus are synonyms defined as:

yellow nutgrass and Cyperus esculentus: European sedge having small edible nutlike tubers

Other synonyms of yellow nutgrass include chufa, earth almond, ground almond, rush nut.

yellow nutgrass (noun)	Cyperus esculentus (noun)
European sedge having small edible nutlike tubers	European sedge having small edible nutlike tubers