genus Pachyrhizus vs Pachyrhizus erosus

genus Pachyrhizus and Pachyrhizus erosus both are nouns.

Word	Noun	Adjective	Verb	Adverb
genus Pachyrhizus	Yes	No	No	No
Pachyrhizus erosus	Yes	No	No	No

genus Pachyrhizus (noun)	Pachyrhizus erosus (noun)
small genus of tropical vines having tuberous roots	Central American twining plant with edible roots and pods; large tubers are eaten raw or cooked especially when young and young pods must be thoroughly cooked; pods and seeds also yield rotenone and oils