passionflower vs vine

passionflower and vine both are nouns.

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

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

passionflower: any of various chiefly tropical American vines some bearing edible fruit
vine: a plant with a weak stem that derives support from climbing, twining, or creeping along a surface

passionflower (noun)	vine (noun)
any of various chiefly tropical American vines some bearing edible fruit	a plant with a weak stem that derives support from climbing, twining, or creeping along a surface