One of the oaks that used to be lumped with Quercus dumosa.(Now changed to Q. berberidifolia)Another of the scrub oaks. Muller's oak can usually be differentiated as the small tree that looks a little different in that the leaf is between Quercus agrifolia and Q. dumosa in size with a green cast to it and a fuzzy lower surface. For a genera that has incredibly diverse leaf forms and FACT that flower parts are supposed to be used for the key, Oaks are a royal PAIN to figure out what is what. This is another species' that should have been left as a variety of Quercus dumosa. It is a fairly uniform variety that is a clean bush/low tree to about 15 ft.. Muller's oak is usually an individual rather than a stand of them, which leads me to question about mixed parenthood, but the acorns come up right most of the time so maybe it is a stable variety. Not for clay, use Quercus durata if you live on clay.
Quercus cornelius-mulleri tolerates sand.
Foliage of Quercus cornelius-mulleri is evergreen.
Flower of Quercus cornelius-mulleri has color yellow.
Communities for Quercus cornelius-mulleri:Chaparral and Coastal Sage Scrub.