"[Plin. Nat. 24.84.] - THE CHAMÆCISSOS: ONE REMEDY.
The chamæcissos has ears like those of wheat, with numerous leaves, and small branches, about five in number. When in blossom it might almost be taken for the white violet: the root of it is diminutive. For sciatica, the leaves of it are taken, seven days consecutively, in doses of three oboli, in two cyathi of wine: this is a very bitter potion, however.”
(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.)