evergreen plant vs evergreen

evergreen plant and evergreen both are nouns.

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

As nouns, evergreen plant and evergreen are synonyms defined as:

evergreen plant and evergreen: a plant having foliage that persists and remains green throughout the year

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

evergreen plant (adjective)	evergreen (adjective)
	(of plants and shrubs) bearing foliage throughout the year