United States, California, Butte, At the information sign, north side of Rutherford Road, 50 yards west of Pennington Road, Gray Lodge Wildlife Area (Gray Lodge Waterfowl Management Area), about 6 miles (air) southwest of Gridley. T17N R01E S13 SE1/4
39.318611 -121.799444
T17N R01E S13 SE1/4; 39§ 19m 7s N; 121§ 47m 58s W
22 meters
72ft.
Normal size plant, annual, on dry soil, scattered road gravel. Common, conspicuous. Flowers white. Freshwater Marsh.
Permission from Mike G. Womack (Wildlife Habitat Supervisor).