"[Plin. Nat. 22.41.] - THE SIUM: ELEVEN REMEDIES.
Among these plants there is reckoned also the sium: it grows in the water, has a leaf broader than that of parsley, thicker, and of a more swarthy colour, bears a considerable quantity of seed, and has the taste of nasturtium. It is an active diuretic, is very good for the kidneys and spleen, and acts as an emmenagogue, either eaten by itself as an aliment, or taken in the form of a decoction; the seed of it is taken in wine, in doses of two drachmæ. It disperses calculi in the bladder, and neutralizes the action of water which tends to their formation. Used in the form of an injection, it is good for dysentery, and applied topically, for the removal of freckles. It is applied by females, at night, for the removal of spots on the face, a result which it produces almost instantaneously. It has the effect also of assuaging hernia, and is good for the scab in horses.”
(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.)