The Shipibo use a variety of seeds from native plants in their jewelry making. These include some of the following plants: Huayruro macho (Ormosia amazonica, red/black) and Huayruro hembra (Ormosia macrocalyx, red) - both traditionally used to promote good health and bring good luck; Rosario (Coix lacryma jobi), resembling rosary beads; Pashaquilla (Leucaena leucocephala), brown, flat, teardrop-shape; Ojo de Vaca (Mucuna rostrata), large, brown, and round, like the eye of a cow; Choloque (Sapindus sapanaria), round and black; Achira (Canna sp.), small, brown, and flat; and Shacapa (Pariana sp), light brown and triangular. Also occasionally used are pirhana jaws and teeth of alligators known as lezardos; used to bring strength.NOTE: Huayruro seeds (the red and black seeds in some of the jewelry) are known to be poisonous if ingested. We recommend that any jewelry with huayruro seeds be kept away from children.