California, United States
Locality: Near town of Portola, Sierra Valley. South on A-23, 4-1/2 miles east off Route 70, 1 mile north.
Coordinates: 40.0406, -120.4914
(Map it)
Elevation: 1794m.
Environment description: Clay loam, basalt stones, well drained. Open exposure. Dry, probably wet seep in spring. Perideridia golonderi (yampa) at site.
Number of plants sampled: 500
Collector(s):