Castanopsis vs genus Castanopsis

Castanopsis and genus Castanopsis both are nouns.

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

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

Castanopsis and genus Castanopsis: evergreen trees and shrubs of warm regions valued for their foliage; southeastern United States and eastern Australia and northern New Zealand

Castanopsis (noun)	genus Castanopsis (noun)
evergreen trees and shrubs of warm regions valued for their foliage; southeastern United States and eastern Australia and northern New Zealand	evergreen trees and shrubs of warm regions valued for their foliage; southeastern United States and eastern Australia and northern New Zealand