Cryptolepis sinensis is a plant species in the genus Cryptolepis, native to China (Guangdong, Guangxi, Guizhou, Hainan, Taiwan, Yunnan) and southeast Asia (Cambodia, India, Indonesia, Malaysia, Vietnam).Cryptolepis sinensis is one of the food sources for the common crow (Euploea core), a common butterfly found in South Asia. USDA, ARS, National Genetic Resources Program. Germplasm Resources Information Network - (GRIN) [Data from 07-Oct-06].