Abstract
Impatienschenmoui (Balsaminaceae), a new species from southern Yunnan, China, was described and illustrated based on morphological and molecular evidence. This new species is morphologically most similar to Impatiensoblongata Ruchis. & Niet, but can be distinguished by 7-9 pairs of leaf veins, glabrous perianth, obovate upper petal, and capsule with trichome.