kingdom: Plantae >
subkingdom: Pteridobiotina Britton & Brown >
phylum: Tracheophyta >
class: Magnoliopsida >
family: Convolvulaceae Juss. >
subfamily: Convolvuloideae Burnett >
genus: Ipomoea L. >
China (S-Yunnan, SW-Yunnan); NE-India (Assam, Meghalaya, Mizoram, Nagaland); Myanmar (Chin); Thailand