Pereskia is a genus of 17 tropical species and varieties of cacti that do not look much like other types of cacti, having substantial leaves and thin stems. They originate from the region between Brazil and Mexico. . Members of this genus are usually referred to as lemon vines, rose cacti or leaf cacti, though the latter also refers to the genus E... Found on http://en.wikipedia.org/wiki/Pereskia
genus of 16 species of trees, shrubs, and vines, family Cactaceae, native to the West Indies and southeastern South America, especially coastal ... Found on http://www.britannica.com/eb/a-z/p/43