Smooth Scouring Rush 2006

MIrror Lake, Yosemite, August 2006

  • Equisetum laevigatum A. Braun
  • Horsetail, Smooth horsetail
  • Equisetaceae (Horsetail Family)
  • USDA Symbol: EQLA
  • USDA Native Status: Native to U.S.

Equisetum laevigatum is a species of horsetail known by the common names smooth scouring rush and smooth horsetail. This plant is native to much of North America except for northern Canada and southern Mexico. It is usually found in moist areas in sandy and gravelly substrates. It may be annual or perennial. It grows narrow green stems sometimes reaching heights exceeding 1.5 meters. The leaves at the nodes are small, scale-like brownish sheaths and there are occasionally small, spindly branches. The stems are topped with rounded cone-shaped sporangia..

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