wood vs flora

wood and flora both are nouns.

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

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

Other hypernyms of wood include botany, vegetation.

wood (noun)	flora (noun)
any wind instrument other than the brass instruments	(botany) a living organism lacking the power of locomotion
a golf club with a long shaft used to hit long shots; originally made with a wooden head	all the plant life in a particular region or period
the trees and other plants in a large densely wooded area
the hard fibrous lignified substance under the bark of trees