Juglans regia

Persian or english walnut, Persian Walnut

Family: Juglandaceae · Type: shrub · Not Native

Persian walnut is a naturalized shrub found in northern North Coast Ranges, Great Valley, Central Western, and Southwestern California near cultivated trees at elevations below 200 meters. Flowering in April, this plant produces small, unremarkable flowers. Growing to a substantial trunk height of 5 to 30 meters with spreading branches, it develops a wide canopy. Its leaves are compound with 5 to 11 elliptic to oblong-ovate leaflets, each 10 to 22 centimeters long, with distinctive tufts of hair in the leaf vein axils. The fruit is a large walnut approximately 3.5 to 5 centimeters in diameter with a thin, wrinkled shell.

Habitat: Seedlings occasionally near cultivated trees

Bloom period: Apr

Elevation: < 200 m

Bioregions: n NCoRO, GV, CW, SW

Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, Jepson eFlora, Cal-IPC, and more.