Nelson's horsetail, Nelson's scouring rush
[Equisetum nelsonii (A.A.Eaton) J.H.Schaffn., more...]
Etymology: Equisetum: Latin for "horsetail" from equus, "horse," and seta, "bristle"
Plants: perennial fern ally
Floristic Rating: Coefficient of Conservatism = 4, Wetland Indicator = FAC+ USDA Plants Database: Federal Distribution and detailed information including photos