Angraecum vs genus Angrecum

Angraecum and genus Angrecum both are nouns.

Word	Noun	Adjective	Verb	Adverb
Angraecum	Yes	No	No	No
genus Angrecum	Yes	No	No	No

As nouns, Angraecum and genus Angrecum are synonyms defined as:

Angraecum and genus Angrecum: genus of tropical Old World epiphytic orchids with showy flowers sometimes grotesque

Other synonyms of Angraecum include genus Angraecum.

Angraecum (noun)	genus Angrecum (noun)
genus of tropical Old World epiphytic orchids with showy flowers sometimes grotesque	genus of tropical Old World epiphytic orchids with showy flowers sometimes grotesque