"[Plin. Nat. 25.96.] - CRETHMOS AGRIOS: ONE REMEDY.
Crethmos agrios, applied to the eyes, removes rheum; and, with the addition of polenta, it causes tumours to disappear.”

(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. 26.50.] - CRETHMOS: ELEVEN REMEDIES. CACHRY.
A similar property belongs also to crethmos, a plant highly praised by Hippocrates. This is one of the wild plants that are commonly eaten—at all events, we find Callimachus mentioning it as one of the viands set on table by the peasant Hecale. It is a species of garden batis, with a stem a palm in height, and a hot seed, odoriferous like that of libanotis, and round. When dried, the seed bursts asunder, and discloses in the interior a white kernel, known as “cachry” to some. The leaf is unctuous and of a whitish colour, like that of the olive, only thicker and of a saltish taste. The roots are three or four in number, and about a finger in thickness: the plant grows in rocky localities, upon the sea-shore. It is eaten raw or else boiled with cabbage, and has a pleasant, aromatic flavour; it is preserved also in brine.
This plant is particularly useful for strangury, the leaves, stem, or root being taken in wine. It improves the complexion of the skin also, but if taken in excess is very apt to produce flatulency. Used in the form of a decoction it relaxes the bowels, has a diuretic effect, and carries off the humours from the kidneys. The same is the case also with alcea: dried and powdered and taken in wine, it removes strangury, and, with the addition of daucus, is still more efficacious: it is good too for the spleen, and is taken in drink as an antidote to the venom of serpents. Mixed with their barley it is remarkably beneficial for beasts of burden, when suffering from pituitous defluxions or strangury.”

(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. 27.51.] - EMPETROS. BY OUR PEOPLE CALLED CALCIFRAGA: FOUR REMEDIES.
Empetros, by the people of our country called "calcifraga," grows on mountains near the sea, and is generally found upon rocks: the nearer it grows to the sea the salter it is, acting as an evacuant of bile and pituitous secretions. That, on the other hand, which grows at a greater distance and more inland, is of a more bitter flavour. It carries off the aqueous humours of the body, being taken for that purpose in broth of some kind, or else hydromel. When old, it loses its strength; but used fresh, either boiled in water or pounded, it acts as a diuretic, and disperses urinary calculi. Authorities who wish full credence to be given to this asserted property, assure us that pebbles boiled with it will split asunder.”

(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.)