genus Euphorbia vs Euphorbiaceae

genus Euphorbia and Euphorbiaceae both are nouns.

Word	Noun	Adjective	Verb	Adverb
genus Euphorbia	Yes	No	No	No
Euphorbiaceae	Yes	No	No	No

genus Euphorbia (noun)	Euphorbiaceae (noun)
type genus of the Euphorbiaceae: very large genus of diverse plants all having milky juice	a family of plants of order Geraniales