17 September 2002.
California, United States
Locality: South side of Butts Canyon Road, near entrance to Guenoc Winery, Detert Reservoir, Lake County.
Coordinates: 38.7331, -122.5247
(Map it)
Elevation: 297m.
Georeference protocol: Lat/lon determined by GPS
Environment description: Roadside ditch.
Comment: Population size ~200.
Collector(s):