"[Plin. Nat. 25.29.] - THE EUPATORIA: ONE REMEDY.
The eupatoria also is a plant under royal patronage. The stem of it is ligneous, hairy, and swarthy, and a cubit or more in length. The leaves, arranged at regular intervals, resemble those of cinquefoil or hemp; they have five indentations at the edge, and are swarthy like the stem, and downy. The root is never used. The seed, taken in wine, is a sovereign remedy for dysentery.”
(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.)