United States, California, Butte, In a field, Peter Ahart Ranch, about 2 1/4 miles north and 1/2 mile east of Honcut, about 12 miles south of Oroville.
39.360833 -121.524722 +-1609m. NAD83
39§ 21m 39s N; 121§ 31m 29s W
37 meters
120ft.
Valley Grassland. A large size plant, growing on damp soil on the bottom of a small swale in a farmed field. Common. Flowers white.