U.S.A., Wyoming, Sheridan, Sheridan Training Area: stock pond and drainage 1.5 km SE of Peak 4266 (338160, 4966620), 1.3 km S of Peak 4152 (339760, 4967580).
zone DMC, 339560E, 4966320N; Specimen Label
1210 meters
1210 m.
Scattered on level palustrine in clay, soil series Shingle-Samday clay loams, with Ranunculus aquatilis, Festuca arundinacea, Sagittaria cuneata, Carex, and Juncus spp.