Cyclocarya
| Cyclocarya | |
|---|---|
| Scientific classification | |
| Kingdom: | Plantae | 
| Clade: | Tracheophytes | 
| Clade: | Angiosperms | 
| Clade: | Eudicots | 
| Clade: | Rosids | 
| Order: | Fagales | 
| Family: | Juglandaceae | 
| Subfamily: | Juglandoideae | 
| Tribe: | Juglandeae | 
| Subtribe: | Juglandinae | 
| Genus: | Cyclocarya Iljinsk. | 
| Species: | C. paliurus | 
| Binomial name | |
| Cyclocarya paliurus (Batalin) Iljinsk. | |
| Synonyms | |
| Pterocarya paliurus Batalin | |
Cyclocarya is a genus of flowering plants in the family Juglandaceae, comprising a single species Cyclocarya paliurus (qing qian liu or wheel wingnut), formerly treated in the genus Pterocarya as Pterocarya paliurus. It is native to eastern and central China.
It is a deciduous tree growing to 30 m tall. 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).