Impatiens yaoshanensis(Balsaminaceae), a New Species from Yunnan, China

Impatiens yaoshanensis K.M. Liu & Y.Y. Cong sp. nova (Balsaminaceae) is described from northern Yunnan, China, and illustrated. It is morphologically similar to I. cyanantha, I. purpurea, I. blinii, I. pseudo-kingii, and I. loulanensis. The distinguishing characters are given in a key to the six species.