Plants of the Santa Cruz Island Reserve, California
Equisetum hyemale (rough horsetail or scouring rush), known in South Africa as snake grass, is a species of horsetail native to moist forests, forest edges and stream banks, swamps and fens throughout the Holarctic Kingdom.
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 ...more ↓