United States, Illinois, Cook Co., PawPaw Woods; Cook County Forest Preserve; between active IL Central Railroad line; N of Maple Lake and Archer Avenue; Willow Springs; opposite Fairmount Cemetery; SE side of Des Plaines River.
41.8333 -87.85
Glacial boulders; humus; clay-loam soil; mesic to wet-mesic floodplain forest; not able to flood; deep shade; with Acer saccharinum, Juglans nigra.
{"habit":"Locally common dark; glaucous; narrow; compact; slightly erect clumps."}