flora vs withered

flora is a noun but withered is not a noun.

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

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

flora (adjective)	withered (adjective)
	(used especially of vegetation) having lost all moisture
	lean and wrinkled by shrinkage as from age or illness