Pipe·vine n. Bot. Any climbing species of Aristolochia; esp., the Dutchman's pipe (Aristolochia sipho). See under Dutchman.
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Dutchman's-pipe n. a hardy deciduous American vine (Aristolochia durior) having large, heart-shaped leaves and bearing brownish-purple flowers which have their calyx tubes curved like the bowl of a tobacco pipe. Formerly classified as Aristolochia Sipho.
Syn: -- pipe vine, Aristolochia macrophylla, Aristolochia durior.
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