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"[Plin. Nat. 27.90.] - THE POLYANTHEMUM OR BATRACHION: THREE REMEDIES.
The polyanthemum, by some persons called "batrachion," by virtue of its caustic properties has an excoriating effect upon scars, and restores the skin to its proper colour. It heals white morphew also."
(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.)