30 August 2015.
California, United States
Locality: County Rd 32A east of Davis, north of I-80, at Yolo Bypass Wildlife Area, Yolo county
Coordinates: 38.5654, -121.6377
(Map it)
Elevation: 6m.
Georeference protocol: Lat/lon determined by GPS
Environment description: Grassland on flat, with deep soil derived from alluvium with Populus, Scirpus, and Salix.
Comment: pop size 10000; plants up to 1.5 m tall
Collector(s):