Quercus chrysolepis

Quercus chrysolepis, commonly termed canyon live oak, canyon oak, golden cup oak or maul oak, is a North American species of evergreen oak. Its leaves are a glossy dark green on the upper surface with prominent spines; a further identification arises from the leaves of canyon live oak being geometrically flat. The species is found in Mexico and in the western United States, notably in the California Coast Ranges. It is often found near creeks and drainage swales growing in moist cool microhabitats....read more on Wikipedia.