Equisetum hyemale subsp. affine (Engelmann) Calder & Roy L. Taylor
Equisetaceae
Smith, Welby
1551
1979-08-21
United States, Minnesota, Wilkin, Wilkin Co. T133N R45W, NE1/4 Sec.24. "Fox Home Prairie". 9 mi S of Rothsay.;Foxhome Prairie, The Nature Conservancy;133N;45W;24
46.30727 -96.278354 +-13785m.
In mesic prairie. Site dominated by Andropogon gerardii and Sorghastrum nutans. Growing in assoc. with Aster ericoides, Liatris pycnostachya, Zigadenus elegans, Panicum virgatum and Helianthus etc.