Details for: PI 664635, Helianthus californicus DC., CAL-2383

11 September 2003.
California, United States
Locality: Mount Diablo State Park, Perkins Canyon Creek off Morgan Territory Rd, Contra Costa County. [This location is unclear (Nov 2011). There is no Perkins Canyon in the park and the coordinates now map into a yard on the east side of Morgan Territory Rd]
Coordinates: 37.8952, -121.8730 (Map it)
Elevation: 198m.
Georeference protocol: Lat/lon determined by GPS
Habitat: Wild Habitat
Environment description: Dry creek bottom
Comment: Small, scattered population (4 plants) at peak flowering. No diseases observed.
Collector(s):

• Gulya, Thomas, USDA, ARS
• Seiler, Gerald, USDA, ARS

21 June 2004.
North Dakota, United States

Donor(s):

• Seiler, Gerald, USDA, ARS