balsam pear vs gourd vine

balsam pear and gourd vine both are nouns.

Word	Noun	Adjective	Verb	Adverb
balsam pear	Yes	No	No	No
gourd vine	Yes	No	No	No

As nouns, gourd vine is a hypernym of balsam pear; that is, gourd vine is a word with a broader meaning than balsam pear:

balsam pear: tropical Old World vine with yellow-orange fruit
gourd vine: any vine of the family Cucurbitaceae that bears fruits with hard rinds

Other hypernyms of balsam pear include gourd.

balsam pear (noun)	gourd vine (noun)
tropical Old World vine with yellow-orange fruit	any vine of the family Cucurbitaceae that bears fruits with hard rinds