Three oaks -- three species. In the foreground, another iconic valley oak (Quercus lobata). On the distant ridge, pale blue oaks (Q. douglasii) on the left give way to vigorous coast live oaks (Q. agrifolia) on the right.
This is one of my favorite vistas. An old valley oak (Quercus lobata) sits at the edge of the forest, entangled with a berry-covered toyon bush (Heteromeles arbutifolia). Serpentine rocks show multicolored lichen. Cloudy blue sky. Wonderful light, ever-changing.
Feel free to skip over these photos unless you too are somewhat obsessive about such things -- or you are interested in a large-format print. The internet cannot give justice to these luminous images.