Finding an Ecological Niche: Selected Foothill Woodland and Chaparral Species, Part 1 of 3: The Blue Oak By Laura Lukes, UC Master Gardener of Butte County, February 22, 2019 [Note: Blue oak (Quercus douglasii), gray pine (Pinus sabiniana), and buckeye (Aesculus californica) are three species that t...