clematis vs vine

clematis and vine both are nouns.

Word	Noun	Adjective	Verb	Adverb
clematis	Yes	No	No	No
vine	Yes	No	No	No

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

clematis: any of various ornamental climbing plants of the genus Clematis usually having showy flowers
vine: a plant with a weak stem that derives support from climbing, twining, or creeping along a surface

clematis (noun)	vine (noun)
any of various ornamental climbing plants of the genus Clematis usually having showy flowers	a plant with a weak stem that derives support from climbing, twining, or creeping along a surface