United States, Minnesota, Fillmore, Along the Root River just upstream from the Whalan canoe access, in rugged terrain 1.5 miles northeast of Lanesboro.
43.7362944391 -91.9509685273
4843119N 584477E; T103N R9W sec7
241 meters
790 feet
Occasional on a gravel bar, within a few inches above the present water line. Moist, coarse sand amongst small, rounded cobbles, exposed in the past few weeks by receding river levels. Full sun.
Associates include Cyperus squarrosus, C. bipartitus, Eragrostis hypnoides, Poa annua, Panicum capillare, Amaranthus tuberculatus, Lindernia dubia, Bidens cernua, Veronica americana, V. peregrina, Myosoton aquaticum, Ranunculus sceleratus, Salix interior.