United States, California, Glenn, Inner North Coast Ranges. Along Black Diamond Road 3.5 road km west of Road 306 (the road from Elk Creek to Stonyford): overlooking lower Black Diamond Creek; 5.3 air km northwest of Stonyford. T18N R07W S13 NW1/4 of SE1/4 USGS Quadrangle: Stonyford 1:24,000
39.412222 -122.589722 WGS 1984
T18N R07W S13 NW1/4 of SE1/4; 39§ 24m 44s N; 122§ 35m 23s W
433 meters (1420ft)
Southeast-sloping grassy gladeopening in mixed chaparral (Adenostoma fascicularis, Garrya congdonii, Heteromeles arbutifolia, Quercus berberidifolia, Arctostaphylos viscida ssp. pulchella, Eriodictyon californicum, Toxicodendron diversilobum, plus scattered gray pine and blue oak); metamorphic rock substrate, but serpentine not far away; shallow soil. In the middle of the dirt road..