Pterocarya paliurus Batalin Cyclocarya is a genus of flowering plants in the family Juglandaceae, comprising a single species Cyclocarya paliurus (qing qian liu[1] or wheel wingnut), formerly treated in the genus Pterocarya as Pterocarya paliurus.

The foliage is similar to Pterocarya, with pinnate leaves 20–25 cm long with five to eleven leaflets, the terminal leaflet present; the leaflets are 5–14 cm long and 2–6 cm broad.

The flowers are catkins; the male (pollen) catkins are produced in clusters (not singly as in Pterocarya), the female catkins 25–30 cm long at maturity, bearing several small winged nuts with a circular wing 2.5–6 cm diameter right round the nut (instead of two wings at the sides as in Pterocarya).

[2][1] 20 fossil endocarps of †Cyclocarya nemejcii from the early Miocene, have been found in the Kristina Mine at Hrádek nad Nisou in North Bohemia, the Czech Republic.

10 Ma old fossil leaflets that are very similar to it have been found in Tröllatunga-Gautshamar Formation in Iceland.