15 October 2016.
Minnesota, United States
Locality: Sherburne National Wildlife Refuge just north of Orrock on the southeast side of Big Mud Lake, T34N R27W NE 1/4 SE 1/4 Sec. 7 Sherburne County
Coordinates: 45.4503, -93.7369
(Map it)
Elevation: 296m.
Environment description: Low land area near shallow lake. Growing in association with Betula papyrifera, Acer rubrum, Carex spp., Spiraea alba, and Cornus sericea.
Number of plants sampled: 30
Comment: Noted approximately 80 specimens. Healthy population with specimens measuring approximately 1.5-2' in height.
Collector(s):