United States, California, Butte, On the margin of the Thermalito Afterbay, on the south side of the access road to the boat ramp at the Thermalito Afterbay, west of Larkin Road, about 1 1/4 miles south of the Oroville Airport, about 5 miles (air) southwest of Oroville. T19N R03E S27 SW1/4
39.468889 -121.632222 +-402m. NAD83
T19N R03E S27 SW1/4; 39§ 28m 8s N; 121§ 37m 56s W
43 meters
140ft.
On damp red disturbed gravelly soil, on the margin of the Thermalito Afterbay. Freshwater Marsh. Normal size plants; common.