Move your mouse over image to enlarge. Barcode: CAL0000013787 Family: CUCURBITACEAE Scientific Name: Citrullus colocynthis (L.) Schrad. Collector: D. Hooper and M.S. Ramaswami Country: India Uses: Fruit pulp, colocynth, a drastic hydragogue cathartic, contains citrullin, which was believed to be a glycoside, but is now known to be a mixture of an alkaloid and citrullol. Roots purgative, used in ascites, jaundice, rheumatism, and urinary troubles.