United States, Minnesota, Morrison, Ereaux State Wildlife Management Area. Gently rolling sandy terrain east of State Highway 371, two miles northeast of Little Falls.
46.01007977 -94.30871332
5096000N 398682E; T41N R31W sec30
347 meters
1140 feet
Locally common in a small (1.5-acre) wetland surrounded by dry oak-aspen woodland. Forming fairly dense patches in the wetter central portion of this shallow meadow/marsh complex. Rhizomes shallowly buried in the peaty muck substrate; in water 3-6 inches deep. Full sun.
Associates include Glyceria grandis, Phalaris arundinacea.