United States, California, Yuba, Northern High Sierra Nevada. Plumas National Forest; near La Porte Road 1.5 km west of American House; on broad ridge top between Slate Creek and Lost Creek. T21N R08E S25 SW1/4 of NW1/4 USGS Quadrangle: American House 1:24,000
39.652222 -121.041389 NAD 1983
T21N R08E S25 SW1/4 of NW1/4; 39§ 39m 8s N; 121§ 2m 29s W
1492 meters (4894ft)
Disturbed area, somehat open in mixed conifer forest (white fir, sugar pine, black oak, incense cedar, Douglas-fir; bush chinquapin, green-leaf manzanita, bracken). Plants forming a small patch about 3 m in diameter; new ray flowers bright white, aging light purple; not common.