May 30, 2021 Quercus douglasii Blue Oak Our native oaks, like this blue oak (Quercus douglasii) in Corral Hollow, are adapted to summer drought. Photo ©Pete Veilleux, East Bay Wilds.Blue oaks (Quercus douglasii) at Tesla. Photo ©Pete Veilleux. More InformationKeep Your Native Garden Alive During the DroughtTesla: Home of Rare Plants and Plant CommunitiesRare and Unusual Plant Discoveries in the East Bay Where to see itExploring the Oak Diversity of Shell Ridge