United States, Minnesota, McLeod, Schaefer Prairie: S of native prairie. SE1/4 Sec. 34, T115N, R29W.;Schaefer Prairie, The Nature Conservancy;115N;29W;34
44.7250496 -94.3049103 +-800m.
Old field. On well drained loam and sandy soil. With Setaria sp., and Medicago lupulina.