"[Plin. Nat. 25.60.] - THE BLATTARIA: ONE REMEDY.
There is a plant very similar in appearance to verbascum, so much so, indeed, as to be frequently gathered for it by mistake. The leaves, however, are not so white, the stems are more numerous, and the flower is of a yellow colour. Thrown upon the ground, this plant attracts black beetles to it, whence its Roman appellation “blattaria.””
(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. 25.74.] - THE PHLOMIS: ONE REMEDY. THE LYCHNITIS OR THRYALLIS.
There are also two varieties of the phlomis, hairy plants, with rounded leaves, and but little elevated above the surface of the earth. A third kind, again, is known as the “lychnitis” by some persons, and as the “thryallis” by others: it has three leaves only, or four at the very utmost, thick and unctuous, and well adapted for making wicks for lamps. The leaves of the phlomos which we have mentioned as the female plant, if wrapped about figs, will preserve them most efficiently from decay, it is said. It seems little better than a loss of time to give the distinguishing characteristics of these three kinds, the effects of them all being precisely the same.
For injuries inflicted by scorpions, an infusion of the root is taken, with rue, in water. Its bitterness is intense, but it is quite as efficacious as the plants already mentioned.”
(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.)