"[Plin. Nat. 24.66.] - THE WHITE THORN: TWO REMEDIES. THE ACANTHION; ONE REMEDY.
The seed of the white thorn is useful as a remedy for the stings of scorpions, and a chaplet made of it, is good for headache. Similar to this plant is that known to the Greeks as the “acanthion;” though it is much smaller in the leaf, which is pointed at the extremity, and covered with a down like a cobweb in appearance. This downy substance is gathered in the East, and certain textures are made of it similar to those of silk. An infusion of the leaves or root of this plant is taken for the cure of opisthotony.”
(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.)

"[Plin. Nat. 27.87.] - THE ONOPORDON: FIVE REMEDIES.
The onopordon, it is said, has strongly carminative effects upon asses, when they eat of it. It acts as a diuretic and as an emmenagogue, arrests diarrhœa, and disperses abscesses and suppurations. ”
(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.)