IUCN threat status:

Not evaluated

Comprehensive Description

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Description

Interior live oak is a slow-growing, variable evergreen, which grows as a large shrub or small tree. Plants may reach 30 to 75 feet in height or assume a shrub-like growth form with heights of only 8 to 10 feet. Leaves, which persist for 2 years, are mostly oblong-to-elliptic or lanceolate, and spiny-toothed to entire. Both leaf surfaces are shiny green but the upper surface is darker. Interior live oak is monoecious. Male flowers are borne in catkins 1 to 3 inches in length, whereas female flowers grow in clusters of two to four in the upper leaf axils.

Distribution: For current distribution, please consult the Plant Profile page for this species on the PLANTS Web site. This plant is native to California and Mexico. Interior live oak occurs from northern California in Siskiyou and Shasta counties, south along the foothills of the Sierra Nevada and inner Coast Ranges, plus the Channel Islands. Adapted to the following zones in California: Douglas-fir, Ponderosa pine, lodgepole pine, redwood, western hardwoods, and chaparral - mountain shrub.

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USDA NRCS National Plant Data Center

Source: USDA NRCS PLANTS Database

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