A dense, 1-5m tall shrub field that is winter-deciduous, fire resistant, and dominated almost exclusively by Quercus garryana semota. "Chaparral" is something of a misnomer, as this type is neither sclerophyllous not evergreen.
SITE FACTORS:
Deep, rich, heavy soils at higher (therefore moister and cooler) elevations than Mixed or Chamise Chaparrals (3,000-7,000 feet).
DISTRIBUTION:
Forming extensive patches in Kern and Tulare counties, and more sporadically north in the Sierran foothills to Butte and Shasta counties. Floristic distinctions among sites dominated by var semota vs var breweri need clarification.
UPDATE: 10/86
Source: Holland, 1986
Digital Text: NatureBase