Colocynth is the plant of which family?

"Citrullus colocynthis", with many common names including colocynth, bitter apple, bitter cucumber, egusi, vine of Sodom, or wild gourd, is a desert viny plant native to the Mediterranean Basin and Asia, especially Turkey (especially in regions such as İzmir), and Nubia.

It resembles a common watermelon vine, but bears small, hard fruits with a bitter pulp.

"C. colocynthis" can be eaten or processed for further uses in medicine and as energy source, e.g. oilseed and biofuel. Colocynth has been widely used in traditional medicine for centuries. The seeds of colocynth, which must be heated to make edible, have been used since antiquity as a food source in areas of the Sahara and Sahel where crops frequently fail or regular farming is impossible.