Abstract: A species of the genus Ranunculus (Ranunculaceae), Ranunculus lujiangensis, is described as new from Anhui Province. This new species is closely related to R.huainingensis W.T.Wang, Z.Yang & J.Xie, differing from R.huainingensis in its entire or inconspicuously crenulate lobes of leaves or leaflets, broadly cymbiflorm elliptic, not nervate and on margin 3-4-piliferous sepals, and broadly ovate ovaries. In R.huainingensis, the lobes of leaves or leaflets are 1-3-denticulate on margin, the sepals are narrowly elliptic, longitudinally 3-nerved and glabrous, and the ovaries are lanceolate in shape.

Key words: Ranunculaceae, Ranunculus, new species, Anhui Province