Quercus Kelloggii, or more commonly know as California Black Oak, is a tree shrub with green foliage and yellow flowers of the genus Quercus. It has a slow growth rate and a height of 85 feet at maturity. Its duration is perennial which means it will grow year after year. It's active growth period is spring and summer, blooms during late spring, is intolerant of shade and is routinely available commercially. Quercus Kelloggii or California Black Oak's floral region is North America US Lower 48, specifically in the states of California and Oregon.
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