involucre vs bract

involucre and bract both are nouns.

Word	Noun	Adjective	Verb	Adverb
involucre	Yes	No	No	No
bract	Yes	No	No	No

As nouns, bract is a hypernym of involucre; that is, bract is a word with a broader meaning than involucre:

involucre: a highly conspicuous bract or bract pair or ring of bracts at the base of an inflorescence
bract: a modified leaf or leaflike part just below and protecting an inflorescence

involucre (noun)	bract (noun)
a highly conspicuous bract or bract pair or ring of bracts at the base of an inflorescence	a modified leaf or leaflike part just below and protecting an inflorescence