Vegetation of 40 sample stands on serpentine soils was analyzed and used to indicate conditions that might limit the establishment of annual range species. Two groups of stands, “cypress” and “non-cypress,” were defined by cluster analysis. Stands with Cupressus sargentii also contained Arctostaphylos viscida and occurred on mesic sites with lower Ca in the sub-surface soil. Stands without C. sargentii usually contained Adenostoma fasciculatum and Quercus durata and occurred on the drier sites with higher Ca.
