scrub vs flora

scrub and flora both are nouns.

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

As nouns, flora is a hypernym of scrub; that is, flora is a word with a broader meaning than scrub:

Other hypernyms of scrub include botany, vegetation.

scrub (noun)	flora (noun)
the act of cleaning a surface by rubbing it with a brush and soap and water	(botany) a living organism lacking the power of locomotion
dense vegetation consisting of stunted trees or bushes	all the plant life in a particular region or period

scrub (adjective)	flora (adjective)
(of domestic animals) not selectively bred

scrub (verb)	flora (verb)
wash thoroughly
clean with hard rubbing
postpone indefinitely or annul something that was scheduled