Coastal Sage Scrub is one of the rarest evergreen oak shrubs to be found in California   found only in the Southern Coastal and Northern Baja regions  Rapid housing development threatens this shrub. These oaks prefer cool fogg in the summer and warm coastal weather in the winter. Leaves are spiny and flat in structure  with spiny p[oints on the end. The twigs are reddish-brown  maturing to a soft brown.