Pachyrhizus vs yam bean

Pachyrhizus and yam bean both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pachyrhizus	Yes	No	No	No
yam bean	Yes	No	No	No

Pachyrhizus (noun)	yam bean (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
	twining plant of Amazon basin having large edible roots