United States, California, Glenn, Near Black Diamond Glades, close to the town of Stonyford. USGS Quadrangle: Stonyford
39.406389 -122.611111
39§ 24m 23s N; 122§ 36m 40s W
707 meters
2320ft.
This herb was collected from a chaparral or brushland in the general vicinity of a road cut on a southeast exposure as a member of the herb layer ina flowering and fruiting state. The population was located on the middle third of a ridge system that had a 60 percent slopes, a smooth vertical slope shape and a smooth horizontal slope shape. It was growing on soil having a shot texture composed mainly of serpentine rock with a lava and glass flow origin.
Dibble and Griggs Rare Plant Study, 1979. CARD # 30875. HERB # 28351.