United States, Illinois, Winnebago Co., South Beloit; N of Rocton Road, w side of Dry Creek just N of old gravel pits. T46N, R2E, Sec. 16, NE¼ of SE¼ of SW¼.
Gravel prairie remnant with exotics.
{"habit":"Occasional to common perennial with milky sap; tepals pale green recurved, hoods white."}