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"[Plin. Nat. 27.89.] - THE OXYS: TWO REMEDIES.
The oxys is a plant with three leaves; it is given for derangement of the stomach, and patients eat it who are suffering from intestinal hernia."
(The Natural History. Pliny the Elder. John Bostock, M.D., F.R.S. H.T. Riley, Esq., B.A. London. Taylor and Francis, Red Lion Court, Fleet Street. 1855.)