United States, Minnesota, St. Louis, In a bed of emergent vegtation on the downstream side of an island in the St. Louis River, just south of New Duluth. SW of SW of section
46.6525278 -92.2330278 +-10m. WGS84
T048N R15W sec10
In a substrate of reltively firm silt. Other species collected here include: Carex lacustris, Schoenoplectus tabernaemontani, S. torreyi, Typha angustifolia.