Abstract: Nineteen new species and one new variety of the genus Impatiens L. from Yunnan, China are described. They are Impatiens longirostris; I. salwinensis; I. deqinensis; I.yid; I. pianmamsis; I. ivenshanensis; I. laojunshanensis; I. malipoensis; I. bannaensis; I. ximaensis; /. sunhixingana; /. daguanensis; I. mananensis; I. suijiangensis; I. zixishanensis; I. diannanensis; /. claviger var. auriculata', I. erfuensis; I. banpoensis; I. dqfuensis.

Key words: Impatiens