Dregea volubilis (L.f.) Benth. ex Hook. f., Fl. Brit. India 4: 46 (1883).
Known as “pradip” or “arti pods” in the potpourri trade, follicles of D. volubilis are narrowly ovoid, 10-15 cm long x 3-4 cm wide, longitudinally wrinkled-striate or irregularly ribbed.
Dregea volubilisis native to Cambodia, China, India, Indonesia, Kashmir, Laos, Maloaysia, Nepal, Philippines, Sri Lanka, Thailand, and Vietnam. The young shoots are eaten, and both the leaves, stems, and roots are used medicinally. The stems also yield a fiber. The follicles of Marsdenia macrantha Schltr. (D. macrantha Klotzsch) are very similar but from tropical Africa.
Asclepiadaceae, also placed in Apocynaceae
Asclepias volubilis L.f.
Wattakaka volubilis (L.f.) Stapf