I. alba - MoonflowerI. aquatica - Water spinachI. batatas - Sweet potatoI. horsfalliae'I. lobata'I. purga'I. purpurea'I. violacea'...plus hundreds more... The Genus Ipomoea', with over 500 species, is the largest genus in the Family Convolvulaceae. The genus includes important food crops (sweet potato and water spinach) and I. violacea, source of the Mexican psychedelic drug, tlitliltzin. Species and cultivars of Ipomoea grown as morning glory are popular in gardens for their often stunning flowers. Ipomoea species are used as food plants by the larvae of some Lepidoptera species including Double-striped Pug and Trichophassus giganteus.