Missouri gourd vs gourd vine

Missouri gourd and gourd vine both are nouns.

Word	Noun	Adjective	Verb	Adverb
Missouri gourd	Yes	No	No	No
gourd vine	Yes	No	No	No

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

Missouri gourd: perennial vine of dry parts of central and southwestern United States and Mexico having small hard mottled green inedible fruit
gourd vine: any vine of the family Cucurbitaceae that bears fruits with hard rinds

Other hypernyms of Missouri gourd include gourd.

Missouri gourd (noun)	gourd vine (noun)
perennial vine of dry parts of central and southwestern United States and Mexico having small hard mottled green inedible fruit	any vine of the family Cucurbitaceae that bears fruits with hard rinds