United States, California, Butte, 1/4 mi off Big Bend Rd on old dirt road, ca. 4 mi off Hwy 70, ca. 25 mi e of Chico. T21N R04E S USGS Quadrangle: Berry Creek
39.702222 -121.445556 +-402m. NAD83
T21N R04E S; 39§ 42m 8s N; 121§ 26m 44s W
366 meters
1200ft.
Soil gravel. Large population. Corolla white, fruit silique.