I live in the foothills of the Central Sierra. You should be able to come across Elderberry, Baywood, and Ash. Check wooded areas next to creeks or highways. The Ash will grow right next to a creek, if not literally right in it. Elderberry is random, but I see a lot of it in the central valley along the highway. The baywood I'm not certain but it might still grow down by you. Perhaps higher up in the mountain you got Juniper? It might even be in the foothills being that its such a dry climate down there. There are probably more, but that's a good start.