Quercus kelloggii is a tree in the oak family (Fagaceae) with a spreading, well-branched habit. It is native to California, Oregon and north‑west Mexico. The foliage can be either deciduous or evergreen depending on site conditions. It suits full sun on well‑drained loam or sand and tolerates a wide soil pH range.

Californian black oak (Quercus kelloggii) is a spreading-branched oak from California and Oregon that prefers full sun and well-drained loam or sand.

An oak is a hardwood tree or shrub in the genus Quercus of the beech family. They have spirally arranged leaves, often with lobed edges, and a nut called an acorn, borne within a cup.

Quercus kelloggii

Californian black oak | Quercus kelloggii

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