Juglans regia L.

Common Walnut

Sp. Pl. 2: 997 (1753) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Sparingly established

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.    

*EGL, *EGU, *GipP, *HSF, *NIS. 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.  

Created by: Andre Messina, 2015-03-10
Updated by: Andre Messina, 2017-09-12
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Rosanae
order Fagales
family Juglandaceae
genus Juglans
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <http://avh.chah.org.au>. Find Juglans regia in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Juglans regia in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Gippsland Plain present introduced
Northern Inland Slopes present introduced
East Gippsland Lowlands present introduced
East Gippsland Uplands present introduced
Highlands-Southern Fall present introduced
Highlands-Northern Fall present cultivated

State distribution

Distribution map
South Australia
New South Wales