- Forsythia连翘属 (/fɔrˈsɪθiə/ or /fɔrˈsaɪθiə/) is a genus of flowering 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.
The flowers are produced in the early spring before the leaves, bright yellow with a deeply four-lobed flower, the petals joined only at the base. These become pendant in rainy weather thus shielding the reproductive parts.