23 September 2002.
California, United States
Locality: South Ponderosa Way Road, 0.5 mile from Robinson Mill Road, Plumas National Forest, close to border between Yuba and Butte Counties, Yuba County.
Coordinates: 39.4858, -121.3128
(Map it)
Elevation: 761m.
Georeference protocol: Lat/lon determined by GPS
Environment description: Roadside, rocky, near flowing stream.
Comment: Population size 150.
Collector(s):