Broad-crowned tree to 30 m high; bark furrowed. Leaves 25–30 cm long; petiole and rachis ± glabrous; leaflets (3–)5–9(–13), elliptic or oblong, 6–15 cm long, 3–6 cm wide, terminal leaflet usually the largest; lower surface subglabrous; margins entire or with few teeth; lateral leaflets subsessile, terminal leaflet petiolate. Male catkin 5–10 cm long; stamens several–numerous. Fruits in groups of 1–3; nuts subglobose, 4–6 cm long.; husk green, glabrous, irregularly dehiscent; shell wrinkled.
GipP, NIS, EGL, EGU, HSF, HNF. Native to Eurasia; commonly cultivated, sometimes grown as a street tree in Victoria, and occasionally spreading from planted trees.
A highly modified and variable species, with numerous cultivars and hybrids grown in Australia.
