United States, Minnesota, Isanti, In shallow lake, 2 mi SSW of Isanti, on E side of Rum River; NE1/4 NW1/4 Sec. 12 T34N R24W;;034N;24W;12
45.449615 -93.27591 +-800m. WGS84
Growing on spongy, mucky substrate in a drying shallow lake that is now dominated by Scirpus acutus, with Glyceria borealis, Carex comosa, and Eleocharis obtusa