United States, Illinois, Peoria, Spring Bay 7.5' quadrangle. Altorfer property, west side of Illinois River.
T. 10N, R.8E,W1/4W1/2NW1/4 SECT.35
Floodplain forest. Open meadows; Acer saccharinum, Morus alba, Platanus. Occasional to common twining vine to 3.0 m.; on south creek levee. On shrubs; inflorescence erect, flowers white.