United States, California, Tehama, High Cascade Range. North side of Mill Creek near Black Rock Campground, ca 0.2 mi west of Black Rock and south of Ponderosa Way. On lower terrace above creek, in area of open foothill-riparian woodland. T27N R02E S23 NW1/4 of NE1/4 USGS Quadrangle: Barkley Mountain 1:24,000
40.183889 -121.7125
T27N R02E S23 NW1/4 of NE1/4; 40§ 11m 2s N; 121§ 42m 45s W
640 meters
2100ft.
On lower terrace above creek, in area of open foothill-riparian woodland, with canyon live oak, redbud, California bay, buckeye, willows, and Populus balsamifera ssp. trichocarpa.