orthotropous vs flora

orthotropous is not a noun while flora is a noun.

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

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

orthotropous (adjective)	flora (adjective)
(of a plant ovule) completely straight with the micropyle at the apex