Citrullus ecirrhosus, commonly known as Namib tsamma, is a species of perennial desert vine in the gourd family, Cucurbitaceae, and a relative of the widely consumed watermelon (Citrullus lanatus). It can be found in both Namibia and South Africa, in particular the Namib Desert. It is the sister species to the bitter melon, Citrullus amarus with which it shares hard, white and bitter flesh.The vines can crawl for up to two meters, and it has yellow flowers. As a desert plant, it is a hardy species, ...