English walnut

Overview

English walnut is a deciduous tree native to Europe and Central Asia, with a broad spreading crown. Its leaves consist of several oblong leaflets rather than a single blade. Young bark is smooth; older trunks develop ridges, while a deep taproot makes established trees difficult to transplant.

Male flowers hang in catkins and female flowers occur in clusters. The fruit develops inside a green husk that browns as it matures, surrounding a thin, wrinkled shell. Small mammals eat the fruits, and the foliage supports caterpillars including the hickory horndevil and luna moth.

Origins & earliest records

Europe and Central Asia

Evidence & interpretation

Extension account.

Selected bibliography

Documented works and useful reading. This is not a list of every appearance.

1. 01

   Juglans regia

   NC State Extension

Family & connections

A source-supported family tree or inspiration record has not yet been compiled for this profile. Related reading below indicates a connection in subject matter, not a proven lineage or creative influence.

References

Sources supporting this profile. Linked pages have their own scope and editorial standards.

1. Extension accountJuglans regiaResearch access: 2026-10-18

Image credits

AI-generated green-husked fruit.

Interpretive detail.