United States, Minnesota, Douglas, 3 mi nw of Kensington.;Staffanson Prairie, The Nature Conservancy;127N;40W;18
45.816134 -95.746813 +-20m.
on w facing hillside in mesic prairie. Site dominated by Andropogon gerardi; in assoc. with: Amorpha canescens, Aster sericeus, Petalostemum purpureum, Coreopsis palmata, Liatris punctata, etc.