USA, Illinois, Kane, South Elgin, Rte 25 South Elgin
41.97759 -88.279235 +-4884m. WGS84
Umbelliferae; Kane Co., Ill. "250 yrds. w. Rt. 25, n. side RR. 1/2 mi. s. of S. Elgin." With Nasturtium officinale, Bidens cernua, Myosotis scorpioides, Polygonum piper, Typha latifolia, Lycopus rubellus, and Cicuta bulbifera.