01 September 2010.
California, United States
Locality: South side of Mill Creek, approximately 0.3 mile east of confluence with Sacramento River, undesignated section, T25N, R2W, Los Molinos, Tehama County.
Coordinates: 40.0368, -122.1123
(Map it)
Elevation: 64m.
Environment description: Urban-suburban (Riparian woodland). About 1/3 of a plant, on damp good soil, moisture from irrigation.
Comment: Commonly abundant.
Collector(s):