United States, California, Butte, Northern High Sierra Nevada. Saddle at head of Empire Creek, about 1.6 km west of Flea Valley. T23N R04E S27 SE1/4 of NE1/4 USGS Quadrangle: Paradise East 1:24,000
39.822778 -121.507222 NAD 1983
T23N R04E S27 SE1/4 of NE1/4; 39§ 49m 22s N; 121§ 30m 26s W
1079 meters (3539ft)
Productive serpentine mixed conifer forest, open here due to logging (Ponderosa pine, Douglas-fir, incense cedar, tanoak, scattered white-leaf manzanita); somewhat rocky red soil. Flowers white; calyx turning from green to red with age; common here.