dicotyledonous vs flora

dicotyledonous is not a noun while flora is a noun.

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

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

dicotyledonous (adjective)	flora (adjective)
(of a flowering plant) having two cotyledons in the seed