a genus of perennial herbs of the family Saxifra-gaceae. The stems are 60–200 cm tall. The leaves are palmati-sect, pinnatisect, or partite. Some species have compound leaves. The radical leaves are very large. The inconspicuous flowers, which are in large panicled inflorescences, are white or pinkish. There are five sepals, and the petals are sometimes reduced. There are five to seven species, which are distributed in Southeast Asia, mainly in the mountains of China. All Rod-gersia are ornamental.