The Collaborative International Dictionary
Aristolochia Sipho
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.
Aristolochia sipho
Pipevine \Pipe"vine`\, n. (Bot.) Any climbing species of Aristolochia; esp., the Dutchman's pipe ( Aristolochia sipho). See under Dutchman.
Wikipedia
Aristolochia sipho
Aristolochia sipho is an ornamental plant in the Aristolochiaceae family.