threatened vs flora

threatened is not a noun while flora is a noun.

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

threatened (noun)	flora (noun)
	(botany) a living organism lacking the power of locomotion
	all the plant life in a particular region or period

threatened (adjective)	flora (adjective)
(of flora or fauna) likely in the near future to become endangered