As provincial new distributions, one genus and two species and one variety of dicotyledon from Hunan are reported in this paper. They are Tinospora sinensis (Loureiro) Merrill, Machilus salicina Hance, Mallotus apelta var. kwangsiensis F. P. Metcalf and Malvastrum coromandelianum (Linnaeus) Garcke. Among these species, M. coromandelianum (Linnaeus) Garcke belongs to Malvastrum A. Gray, which is a newly recorded genus in Hunan. M. coromandelianum (Linnaeus) Garcke, an invasive species, may cause damage to local agricultural production and ecological environment.