Sword grass

Sword grass may refer to:

• Some species of grasses with blades that are sharp enough to cut human skin (this is because they contain many silica phytoliths, a hardening material in many plants. The sharp blades help to discourage herbivores from grazing (also protecting the grasses around it)), including:
  • Gahnia species
  • Imperata cylindrica (Cogon grass)
  • Poa ensiformis
• Species of moth:
  • Xylena exsoleta (Sword-grass)
  • Xylena vetusta (Red Sword-grass)
  • Tisiphone abeona (Sword-grass brown)
  • Tisiphone helena (Northern sword-grass brown)