Connecticut Plants
Scouring Rush (Rough Horsetail)
Equisetum hyemale L.
  • Family: horsetail (Equisetaceae)
  • Habitat: moist fields, woods, banks, and roadsides
  • Height: 1 to 6 feet
  • Location of spores: in cones at the top of the green stems
  • Persistence: evergreen
  • Origin: native

A young stem of scouring rush. Young stems have a fringe of black teeth on each sheath, but the teeth often fall off and the sheaths turn gray with age. Photographed in Cheshire, Connecticut in mid-July.


A cone of scouring rush. Photographed in eastern Ontario in mid-June.


Photographed in Outagamie County, Wisconsin in mid-June.