United States, Minnesota, Isanti, In a 15 acre old-field, o.5 mi N of Tennyson Lake; SE1/4 NW1/4 Sec. 17 T35N R25W;;035N;25W;17
45.524367 -93.48548 +-320m.
In old-field, half recently cultivated in sorghum and half has good cover of sand prairie species, dominated by Andropogon gerardi, with lesser amounts of Schizachyrium scoparium and Stipa spartea etc