flora vs shrubbery

flora and shrubbery both are nouns.

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

As nouns, shrubbery is a hyponym of flora; that is, shrubbery is a word with a more specific, narrower meaning than flora:

flora (noun)	shrubbery (noun)
(botany) a living organism lacking the power of locomotion	a collection of shrubs growing together
all the plant life in a particular region or period	an area where a number of shrubs are planted