United States, Illinois, Lake, Waukegan, IL; ditches. Note: Specimens were probably obtained from the collection of The Chicago Academy of Sciences by Anna P. Kummer who worked in their herbarium.These were left by her when she retired from Northeastern Illinois University, then Chicago Teachers College North.
Flower: Y Fruit: N Vegetation: Y Bud: N
The collector is unknown but could be one of the early collectors of the Chicago region flora. Specimens and information donated to The Morton Arboretum by Dr. Herbert L. Lamp in 1987.