Forsythia is a genus of fιοwering plants in the family Oleaceae (olive family). There are about 11 species, mostly native to eastern Asia, but one native to southeastern Europe. The common name is also Forsythia; the genus is named after William Forsyth.
Species Forsythia europaea Degen & Bald. Balkans in Albania and Serbia. Forsythia giraldiana Lingelsh. Northwest China. Forsythia japonica Makino. Japan. Forsythia likiangensis Ching & Feng ex P.Y.Bai. Southwest China. Forsythia mandschurica Uyeki. Northeast China. Forsythia mira M.C.Chang. North central China. Forsythia koreana (Nakai) T.B.Lee. Korea. Forsythia ovata Nakai. Korea. Forsythia suspensa (Thunb.) Vahl. Eastern and central China.(Chinese: 连翘) Forsythia togashii H.Hara. Japan (Shōdoshima). Forsythia viridissima Lindley. Eastern China. Forsythia × intermedia. Garden hybrid between F. suspensa and F. viridissima.