United States, Wisconsin, Waupaca, Township of Wyoming; Bog and edge of Brady Pond along CTH J.
44.6717568° N, 89.0727124° W; T25N R12E sec05
Marsh and slough.
Growing with clump with broader leaves and contiguous infl. suggesting introgression to T. latifolia (See Freckmann 6658). Sheet 3 of 3. [All data from UWSP020256_A; nothing on this sheet except accession number].