United States, Minnesota, Goodhue, On a low, sandbar-like island in Sturgeon Lake. This is a bottomland lake connected to the main channel of the Mississippi River, about 5 miles northwest of the city of Red Wing. NW of SW of section; T114N R15W sec29
44.6478 -92.65135
44.6478000, -92.6513500
In a soft sandy/silty substrate. The island was formed by natural processes 3-5 years previous. On the island is a small shallow pond where the plants were collected.