United States, California, San Diego, Northern edge of Otay Mesa in southern San Diego County. Collections from mesatop ca. 100m northwest of Sherrif Academy shooting range and large water tank near northern terminus of Alta Road. Immediately south of Environmental Trust (now defunct) Vernal Pool Preserve.
32.59633 -116.92775
32.00° 35.00m 47s N; 116.00° 55.00m 40s W
153 meters
502ft.
Disturbed mesatop. Likely supported sparse chamise chaparral with interspersed vernal pools, now with largely native and nonnative annual plant community.