United States, California, Yolo, Southeast side of Woodland, Woodland Regional Park, just south of the intersection of County Roads 102 and 25, east side of road 102. Easternmost part of park on eastern side of reservoir area and horse paddock along roadside.
38.553611 -121.728889 +-1m. NAD 1983
38§ 33m 13s N; 121§ 43m 44s W
Alkaline plain with shallow vernal pool topography. Area is used as air field and for rodeos and is disturbed and mowed. Growing with Lolium and Frankenia. Very abundant in high areas of horse paddock and near fence. UTM: 10S, 611410, 4277887.
Label says" John M. Tucker and Beecher Crampton Herbaria UC Davis Center for Plant Diversity.