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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.
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