Dutchman's-pipe vs pipe vine

Dutchman's-pipe and pipe vine both are nouns.

Word	Noun	Adjective	Verb	Adverb
Dutchman's-pipe	Yes	No	No	No
pipe vine	Yes	No	No	No

As nouns, Dutchman's-pipe and pipe vine are synonyms defined as:

Dutchman's-pipe and pipe vine: hardy deciduous vine having large leaves and flowers with the calyx tube curved like the bowl of a pipe

Other synonyms of Dutchman's-pipe include Aristolochia durior, Aristolochia macrophylla.

Dutchman's-pipe (noun)	pipe vine (noun)
hardy deciduous vine having large leaves and flowers with the calyx tube curved like the bowl of a pipe	hardy deciduous vine having large leaves and flowers with the calyx tube curved like the bowl of a pipe