The Dahong Palay (also spelled Dinahong palay, Dahon palay or Dahompalay), literally "rice leaf" in Tagalog, is a single-edged sword from the Philippines, specifically the Southern Tagalog provinces. The sword's name could either be a reference to the similarity of its shape to the leaves of rice or to local green "dahong palay" snakes, purported to be extremely venomous. The snake is probably the green specimen of the Philippine Pit Viper, Trimeresurus flavomaculatus, though it is sometimes identified as various relatively harmless green snakes, like vine snakes. The dahong palay was originally used as a farmer's tool, for clearing thick grass growths. However, during the Philippine revolution of 1896, farmers from Batangas soon came to favor it for its slashing and thrusting "feel".