Page authors: Don Knoke, David Giblin
Juglans nigra
black walnut

Distribution: Occurring on both sides of the Cascades crest in Washington; Washington to Oregon, east to Idaho; native to central and eastern North America.

Habitat: Disturbed areas and riparian zones, typically in the vicinity of urbanized areas where escaped from cultivation.

Flowers: April-May

Origin: Introduced from central and eastern North America

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Wind


[none provided]

Accepted Name:
Juglans nigra L.
Publication: Sp. Pl. 2: 997. 1753.

Synonyms & Misapplications:
(none provided)
Additional Resources:

PNW Herbaria: Specimen records of Juglans nigra in the Consortium of Pacific Northwest Herbaria database

WA Flora Checklist: Juglans nigra checklist entry

OregonFlora: Juglans nigra information

E-Flora BC: Juglans nigra atlas page

CalPhotos: Juglans nigra photos

20 photographs:
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