Nepenthes distillatoria.

Botanical name: 

Nepenthes distillatoria Linn. Nepenthaceae. Pitcher Plant.

Ceylon. This plant has been introduced into India and is now common in some of the mission gardens and is grown in conservatories in Europe and America. The leaves are broad, oblong, smooth, with a very strong nerve running through the middle, ending in a long tendril, generally twisted, to which hangs a long receptacle or bag, which, on being pressed, yields a sweet, limpid, pleasant, refreshing liquor in such quantity that the contents of six or eight of them are sufficient to quench the thirst of a man.

Sturtevant's Edible Plants of the World, 1919, was edited by U. P. Hedrick.