PRE 25 October 2013.
Iowa, United States
Locality: Bluffs along Des Moines River, SE 1/4 of Section 9, T82N R26W, Madrid NW Quad, Boone County.
Coordinates: 41.9248, -93.8755
(Map it)
Elevation: 328m.
Environment description: Edge of dry woods. Western exposure.
Associated species: Carya ovata, Celtis occidentalis, Ostrya virginiana, Quercus alba, and Q. rubra.
Collector(s):