United States, Minnesota, Wabasha, Upper Mississippi River Corridor; Pool 4. River Mile 758.0; backwater above Rovinson Lake near Hershey Island. UTM: E579040 N4913116;Upper Mississippi National Wildlife Refuge;111N;10W;00
44.373731 -92.099064 +-46874m. WGS84
44° 37' N,92° 01' W;Collector
Contiguous backwater; growing on silt/sand substrate, in water < 50 cm deep. Associated with Potamogeton crispus, P. pectinatus, Vallisneria americana and Zosterella dubia.