monocotyledonous vs flora

monocotyledonous is not a noun while flora is a noun.

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

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

monocotyledonous (adjective)	flora (adjective)
(of a flowering plant) having a single cotyledon in the seed as in grasses and lilies