United States, Minnesota, McLeod, McLeod County, Schaefer Prairie...SE1/4 of Sec. 34, T 115N R 29W...Collected along prominent N-S ridge.;Schaefer Prairie, The Nature Conservancy;115N;29W;34
44.724106 -94.305158 +-969m.
Well drained loam. Assoc. with Petalostemum candidum, Aster sericeus, and Zizia aptera.