For the Lake Michigan locations, associated species include Juniperus horizontalis, Prunus pumila, Carex crawei, C garberi, C viridula, Lobelia kalmii, Arabis lyrata. For the prairies and savannas, associated species include Quercus species, Carya ovata, Rhus glabra, Amorpha canescens, Solidago nemoralis, Schizachyrium scoparium, Andropogon gerardii, Bouteloua curtipendula, Aster sericeus, Dalea purpurea, and Liatris aspera.