Citrullus lanatus
 Citrullus lanatus is a plant species in the family Cucurbitaceae a vine-like (scrambler and trailer) flowering plant originally from southern Africa. It is cultivated for its fruit; cultivars include watermelons (Citrullus lanatus (Thunb.) var. lanatus) and citron melons (Citrullus lanatus var. citroides (L. H. Bailey) Mansf.). Citrullus lanatus has become naturalized in semi-arid regions of several continents and is designated as a pest plant in parts of Western Australia.