Quercus wislizeni

Interior live oak

Family: Fagaceae · Type: shrub · Native

Interior live oak is a California native shrub found in diverse oak woodland and chaparral habitats throughout the central and northern California mountain ranges. Flowering from March to May, this evergreen shrub produces small inconspicuous flowers typical of oak species. Growing 2 to 4 meters tall with a furrowed, checkered gray bark, it develops a dense, multi-stemmed form with sturdy branches. Its leathery leaves are dark green and shiny on the upper surface, oblong to elliptic, with margins that range from entire to spine-toothed and generally have an acute, abruptly pointed tip. The mature acorns develop in a cup-shaped to hemispheric shell and take two years to fully mature.

California counties: Kern, Los Angeles, Tulare, San Bernardino, San Diego, Ventura, Mendocino, Santa Cruz, Orange, El Dorado, Riverside, Lake, Butte, Calaveras, Amador, Humboldt, Contra Costa, Nevada, Inyo, Fresno, Napa, Yolo, Shasta, Santa Barbara, Placer, San Luis Obispo, Mariposa, Santa Clara, San Joaquin, Tehama, Yuba, Colusa, Glenn, Solano, Alameda, Madera, Marin, Monterey, San Benito, San Mateo, Sonoma, Stanislaus, Sutter, Trinity, Tuolumne, Sacramento, Sierra

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