Broad-crowned tree 20-30 m tall but much larger in the wild. Bark dark, deeply furrowed. Leaves compound, alternate, mostly 30-50 cm long. Leaflets 15-23, oblong-lanceolate, broadest about one third from the base, tapering to a point, irregularly-toothed, 5-12 cm long, 2-4 cm wide, the terminal leaflet is often small or absent; changing to a dull yellow in autumn. Leaf stalk swollen at the base. Flowers mostly in spring. Fruits in 1s or 2s, round, about 5 cm wide, hairy-surfaced, nut thick shelled and deeply ridged.

E North America

A valuable timber; nuts edible.

ACT: Government House. VIC: Geelong (Geelong Botanic Gardens). TAS: Hobart (Royal Tasmanian Botanical Gardens).

 

J. cinerea L., White Walnut, is occasionally cultivated; it has grey bark, 11-19 leaflets per leaf, and is sticky on the branchlets and undersurface of the leaflets; the sticky fruits are in clusters of 3-5.

Source: Spencer, R. (1997). Juglandaceae. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 2. Flowering plants. Dicotyledons. Part 1. The identification of garden and cultivated plants. University of New South Wales Press.