The Collaborative International Dictionary
Dutchman's-pipe
Dutchman's-pipe \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.