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Quercus agrifolia, the California live oak, [3] or coast live oak, is an evergreen [4] live oak native to the California Floristic Province.Live oaks are so-called because they keep living leaves on the tree all year, adding young leaves and shedding dead leaves simultaneously rather than dropping dead leaves en masse in the autumn like a true deciduous tree. [5]
Live oak woodlands and savannas are dominated by coast live oak (Quercus agrifolia). Canopy cover varies from dense forest to open savannas. In forests, California blackberry (Rubus ursinus), creeping snowberry (Symphoricarpos mollis), toyon (Heteromeles arbutifolia), and poison oak (Toxicodendron diversilobum) are common in the understory. [10]
Canyon live oak (Quercus chrysolepis), Interior live oak (Quercus wislizenii), Coast live oak (Quercus agrifolia), Black oak (Q. kelloggii), Oregon oak (Q. garryana) Big leaf maple (Acer macrophyllum). Further inland, on north facing slopes or protected canyons, these forests are drier and generally lack tanoak, Douglas fir, and coast redwood.
California oak woodland occurs in moist areas usually up to 4,900 feet (1,500 m). [6] [5]: 387 These woodlands include oak species, such as coast live oak (Quercus agrifolia), canyon live oak (Quercus chrysolepis), and Engelmann's oak (Quercus engelmannii).
Blue oak (Quercus douglasii) - in the Central Valley foothills and Coast Ranges. California black oak (Quercus kelloggii) - in the higher hills and mountains. Canyon live oak (Quercus chrysolepis) - found mainly in northern mountainous regions. Interior live oak (Quercus wislizeni) - found in the Central Valley region.
Cystotheca lanestris, the live oak witch's broom fungus, is a species of mildew that infects buds and induces stem galls called witch's brooms on oak trees in California, Arizona, and Mexico in North America. [2] [3] Witch's brooms are "abnormal clusters of shoots that are thickened, elongated, and highly branched."
Quercus agrifolia, California Live Oak tree This page was last edited on 12 June 2023, at 11:11 (UTC). Text is available under the Creative Commons Attribution ...