Alpinia vs genus Zerumbet

Alpinia and genus Zerumbet both are nouns.

Word	Noun	Adjective	Verb	Adverb
Alpinia	Yes	No	No	No
genus Zerumbet	Yes	No	No	No

As nouns, Alpinia and genus Zerumbet are synonyms defined as:

Alpinia and genus Zerumbet: perennial rhizomatous herbs of Asia and Australia and Polynesia having ginger-scented rhizomes

Other synonyms of Alpinia include genus Alpinia, genus Languas.

Alpinia (noun)	genus Zerumbet (noun)
perennial rhizomatous herbs of Asia and Australia and Polynesia having ginger-scented rhizomes	perennial rhizomatous herbs of Asia and Australia and Polynesia having ginger-scented rhizomes