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Zones 5-9, 14-21
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Quercus kelloggii

California Black Oak, Kellogg Oak
Deciduous, Trees


Appearance and hardiness of Oaks vary widely, but all produce acorns preceded by inconspicuous flowers. Single nuts are more or less enclosed in a cuplike cap covered with many closely set scales. In some species, the acorns are edible,with a sweet flavor. Some oaks are widely planted over large areas, while others have a limited range

Quercus kelloggii

To 30–80 ft. tall and wide,with short trunk, ascending branches, and rounded crown. Dark gray, furrowed, checked bark. Handsome foliage: leaves unfold soft pink or dusty rose, mature to dark glossy green, turn yellow or yellow orange in fall.Leaves 4–10 in. long,2 1/2 –6 in.wide,with deep, sharply tapered lobes ending in bristly points. Oblong or almost conical, 1– 1/2 -in. acorns enclosed by about half in bowl-shaped cap. Good moderate-size tree for spring and fall color; attractive winter trunk and branch pattern. Susceptible to sudden oak death.

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