genus Euphorbia vs Euphorbia

genus Euphorbia and Euphorbia both are nouns.

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

As nouns, genus Euphorbia and Euphorbia are synonyms defined as:

genus Euphorbia and Euphorbia: type genus of the Euphorbiaceae: very large genus of diverse plants all having milky juice

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