coniferous vs evergreen

coniferous is not a noun while evergreen is a noun.

Word	Noun	Adjective	Verb	Adverb
coniferous	No	Yes	No	No
evergreen	Yes	Yes	No	No

coniferous (noun)	evergreen (noun)
	a plant having foliage that persists and remains green throughout the year

coniferous (adjective)	evergreen (adjective)
of or relating to or part of trees or shrubs bearing cones and evergreen leaves	(of plants and shrubs) bearing foliage throughout the year