SE-facing Adenostoma sparsifolium-Adenostoma fasciculatum & Ceanothus greggii with high boulder content. Area burned in last 15 yrs. Herb layer sparse amongst coarse sand that blankets ground surface. Adenostoma sparsifolium taller than Adenostoma fasciculatum & Ceanothus greggii. By in lg area = Adenostoma sparsifolium-Adenostoma fasciculatum. Ceanothus greggii is a fairly consistent associate on N slopes.