06 June 1994.
California, United States
Locality: Butte Co. Oraville; T 20 N, R 3 E; Southwest 1/4 Sect. 27. About 1/2 mile east of large PG&E substation. East of Cottonwood Creek, about 4 miles NW of Oraville.
Elevation: 61m.
Environment description: Dark brown to black gravelly soil, side of small vernal pool or swale.
Collector(s):