Label source: 4287x0Dx0Ax0Dx0ASource: Spruce, R (1851-1855) Uses of Amazon plants. Journals from Barra to the Orinoco, from Barra to Tarapoto and notes on the uses of Amazon plants and on cryptograms, p22.: Applied to forehead for headache and placed beneath pi, llow for sleep. Boiled they are very good greens.