"[Plin. Nat. 24.68.] - ASPALATHOS: ONE REMEDY.
The common thorn too, with which the fulling coppers are filled is employed for the same purposes as the radicula. In the provinces of Spain it is commonly employed as an ingredient in perfumes and unguents, under the name of “aspalathos.” There is no doubt, however, that there is also a wild thorn of the same name in the East, as already mentioned, of a white colour, and the size of an ordinary tree.”
(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. 25.108.] - THE LABRUM VENEREUM: ONE REMEDY.
Labrum Venereum is the name given to a plant that grows in running streams. It produces a small worm, which is crushed by being rubbed upon the teeth, or else enclosed in wax and inserted in the hollow of the tooth. Care must be taken, however, that the plant, when pulled up, does not touch the ground.”
(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. 27.47.] - THE DIPSACOS: TWO REMEDIES.
The dipsacos has leaves like those of the lettuce, with prickly tubercles on the middle of the back. The stem of it, two cubits in length, is bristling all over with prickles of a similar nature. The joints of the stem are closely covered with two leaves, which form a concave axil in which a saltish dew-like liquid collects. At the summit of the stem there are small heads covered with prickles: it grows in watery localities.
This plant is used for the cure of chaps of the fundament and of fistula; in which latter case the root is boiled down in wine to the consistency of wax, to allow of its being introduced into the fistula in the form of a salve. It is employed; too, for the cure of all kinds of warts: as a liniment for which, the juice collected in the axils, as above mentioned, is also used by some. ”
(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.)