United States, Minnesota, Yellow Medicine, Yellow Medicine Co.; within the Glacial R. Warren valley; T115N R39W, SW14 of NW1/4 of NW1/4 Sec. 11;;115N;39W;11
44.783269 -95.520789 +-249m.
Growing in formerly grazed, dry prairie on shallow, gravelly soil over rock knobs; In community dominated by Bouteloua curtipendula, Schizachyrium scopraium and Poa compressa.