Abstract:Three taxa of Euphorbiaceae from southern China are reported. Crotondinghuensis H. S. Kin is a new species. Croton guizhouensis H. S. Kin is a new name forCroton urticifolius Y. T. Chang & Q. H. Chen (1983) which is a later homonym ofC urticifolius Lain. (1786). Croton xiaopadou (Y. T. Chang & S. Z. Huang) H. S. Kin is anew combination.
