bract vs epicalyx

bract and epicalyx both are nouns.

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

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

bract: a modified leaf or leaflike part just below and protecting an inflorescence
epicalyx: a group of bracts simulating a calyx as in a carnation or hibiscus

Other hyponyms of bract include calycle, calyculus, false calyx, bracteole, bractlet, spathe, involucre, glume.

bract (noun)	epicalyx (noun)
a modified leaf or leaflike part just below and protecting an inflorescence	a group of bracts simulating a calyx as in a carnation or hibiscus