United States, Minnesota, Washington, Washington County ... In Afton State Park, in the St. Croix River Valley ... T 28N R 20W SE1/4 of SW1/4 of Sec 35;Afton State Park;027N;20W;35
44.8652763 -92.7727814
In mesic deciduous forest on east-facing slope. Associated with Poulus grandidentata, Quercus rubra, Tilia americana, Ulmus americana.