flora vs forest

flora and forest both are nouns.

Word	Noun	Adjective	Verb	Adverb
flora	Yes	No	No	No
forest	Yes	No	Yes	No

As nouns, forest is a hyponym of flora; that is, forest is a word with a more specific, narrower meaning than flora:

flora (noun)	forest (noun)
(botany) a living organism lacking the power of locomotion	the trees and other plants in a large densely wooded area
all the plant life in a particular region or period	land that is covered with trees and shrubs

flora (verb)	forest (verb)
	establish a forest on previously unforested land