Etymology: Equisetum: Latin for "horsetail" from equus, "horse," and seta, "bristle"
Plants: perennial fern ally
Habitat: wet areas
Hazardous: Careful, this plant is hazardous!
Conservation Status: Special Concern
Flora of North America: Flora of North America Floristic Rating: Coefficient of Conservatism = 10, Wetland Indicator = FACW WIS DNR-Bureau of Endangered Resources: Detailed information on Wisconsin listed species including state and federal status, photos, etc. University of Wisconsin - Green Bay: Fern & Fern Allies: Photos, descriptions, information USDA Plants Database: Federal Distribution and detailed information including photos