flora vs autotroph

flora and autotroph both are nouns.

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

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

flora: (botany) a living organism lacking the power of locomotion
autotroph: plant capable of synthesizing its own food from simple organic substances

flora (noun)	autotroph (noun)
(botany) a living organism lacking the power of locomotion	plant capable of synthesizing its own food from simple organic substances
all the plant life in a particular region or period