- 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.