mahagua vs hibiscus

mahagua and hibiscus both are nouns.

Word	Noun	Adjective	Verb	Adverb
mahagua	Yes	No	No	No
hibiscus	Yes	No	No	No

As nouns, hibiscus is a hypernym of mahagua; that is, hibiscus is a word with a broader meaning than mahagua:

mahagua: shrubby tree widely distributed along tropical shores; yields a light tough wood used for canoe outriggers and a fiber used for cordage and caulk; often cultivated for ornament
hibiscus: any plant of the genus Hibiscus

As nouns, hibiscus is a hypernym of mahagua; that is, hibiscus is a word with a broader meaning than mahagua:

mahagua: erect forest tree of Cuba and Jamaica having variably hairy leaves and orange-yellow or orange-red flowers; yields a moderately dense timber for cabinetwork and gunstocks
hibiscus: any plant of the genus Hibiscus

mahagua (noun)	hibiscus (noun)
shrubby tree widely distributed along tropical shores; yields a light tough wood used for canoe outriggers and a fiber used for cordage and caulk; often cultivated for ornament	any plant of the genus Hibiscus
erect forest tree of Cuba and Jamaica having variably hairy leaves and orange-yellow or orange-red flowers; yields a moderately dense timber for cabinetwork and gunstocks