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English Walnut
Juglans regia

The native range of this tree extends from southeastern Europe to the Himalayas to China. Also called Madeira-Nut or Persian Walnut, it was introduced to California from Spain, via Chile in the late 1860s and its fruit, the walnut, became a California commercial product in 10 years. Cultivations do well in cool climates and high altitude. This nut is widely used in ethnobotanical medicine and as a natural dye.

Growth Habit:Deciduous tree growing to 12-18 m (40-60 ft) tall
Presence in US:CA ID MI NY WA
Presence in Canada:ON
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This project was supported in part by NSF Grant IIS-03-25867 (ITR: An Electronic Field Guide: Plant Exploration and Discovery in the 21st Century) and by the Washington Biologists' Field Club.
Any opinions, findings, conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the official views, opinions, or policy of the National Science Foundation (NSF).