United States, Minnesota, Clay, Audubon Prairie: 16.5 mi. ESE of Moorhead. NE1/4 NW1/4 Sec. 32, T139N, R45W.;Audubon Prairie, The Nature Conservancy;139N;45W;32
46.811205 -96.398224 +-800m. WGS84
Along ditch near woody draw with Rumex sp., Poa pratensis, Cornus stolonifera.