United States, Minnesota, Cass, Along Shingobee River in Chippewa National Forest...T 141N R 31W NE1/4 of SE1/4 of Sec 16;Chippewa National Forest;141N;31W;16
47.0297222 -94.5980556
47.0297222° N,94.5980556° W;collector
At the margin of the river where a small spring-fed rivulet enters. In sandy/silty soil (wet). Associated with Veronica americana, Lemna minor.