genus Luffa vs rag gourd

genus Luffa and rag gourd both are nouns.

Word	Noun	Adjective	Verb	Adverb
genus Luffa	Yes	No	No	No
rag gourd	Yes	No	No	No

genus Luffa (noun)	rag gourd (noun)
dishcloth gourds	any of several tropical annual climbers having large yellow flowers and edible young fruits; grown commercially for the mature fruit's dried fibrous interior that is used as a sponge