United States, Minnesota, Cass, Along the Paul Bunyan State Trail (old Burlington Northern Railroad), six miles north of Hackensack, six miles south of Walker. On the northeast shore of Portage Lake. E1/2 of NE1/4 of SW1/4 of section;;141N;31W;24
47.0162764 -94.5462387
47.0162764° N,94.5462387° W;collector
In strongly rolling forested moraine. Uncommon to locally abundant. On sand beach ~12-18 inches above the water along wave-washed shoreline. Full sun. Associated species include Cyperus strigosus, C. squarrosus, Carex viridula, Eleocharis acicularis, E. palustris, Lipocarpha micrantha, Juncus pelocarpus, Agrostis scabra, Dichanthelium acuminatum, Ranunculus flammula, Erechtites hieraciifolius, Agalinus paupercula, Conyza canadensis, Bidens tripartita, B. cernua, Lobelia kalmii.