21 July 2012.
Illinois, United States
Locality: Illinois 3. Approx. 200m south from intersection between Gorham Rd and Illinois 3, Shawnee National Forest, Grand Tower. Jackson County.
Coordinates: 37.6948, -89.4742
(Map it)
Comment: Larger leaves than similar P. hortulana. Fruit is non-waxy.
Collector(s):