Juglans regia

Juglans regia
Mature walnut tree
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fagales
Family: Juglandaceae
Genus: Juglans
Section: Juglans sect. Juglans
Species:
J. regia
Binomial name
Juglans regia
Distribution map
Synonyms

J. duclouxiana Dode
J. fallax Dode
J. kamaonica (C. de Candolle) Dode
J. orientis Dode
J. regia subsp. fallax (Dode) Popov
J. regia subsp. kamaonica (C. de Candolle) Mansf.
J. regia subsp. turcomanica Popov
J. regia var. orientis (Dode) Kitam.
J. regia var. sinensis C. de Candolle
J. sinensis (C. de Candolle) Dode

Juglans regia, known by various common names including the common walnut,[1] English walnut,[2][3][4] or Persian walnut[2][5] amongst other names, is a species of walnut. It is native to Eurasia in at least southwest and central Asia and southeast Europe, but its exact natural area is obscure due to its long history of cultivation.

The species has numerous cultivars which produce the edible walnut consumed around the world and produced predominately in China. It is widely cultivated across temperate regions throughout the world including those of Eurasia, Australia, and the Americas.

  1. ^ a b Rivers, M.C., Allen, D.J. (2017). "Juglans regia". The IUCN Red List of Threatened Species. 2017: T63495A61526700. doi:10.2305/IUCN.UK.2017-3.RLTS.T63495A61526700.en.
  2. ^ a b "Juglans regia | Landscape Plants | Oregon State University". landscapeplants.oregonstate.edu. Retrieved 2 April 2025.
  3. ^ "Juglans regia (Black Sea Walnut, Common Walnut, English Walnut, Persian Walnut) | North Carolina Extension Gardener Plant Toolbox". plants.ces.ncsu.edu. Retrieved 2 April 2025.
  4. ^ "English Walnut | The Wood Database (Hardwood)". Retrieved 2 April 2025.
  5. ^ Cite error: The named reference Gaisberger was invoked but never defined (see the help page).