Strabo, Geography
H.C. Hamilton, Esq., W. Falconer, M.A., Ed.

The same writer mentions a tree at Gades, which had boughs reaching to the ground; its sword-shaped leaves often measuring a cubit long, and four fingers broad. Also that about Carthagena there was a tree whose thorns produced a bark from which most beautiful stuffs were woven. As for the tree [he saw] at Gades, we ourselves have observed a similar in Egypt, so far as the inclination of the boughs is concerned, but with a differently shaped leaf, and producing no fruit, which according to him the other did. In Cappadocia there are stuffs made from thorns, but it is not a tree which produces the thorn from which the bark is taken, but a low plant; he also tells us of a tree at Gades, from which if a branch be broken off a milk will flow, and if the root be cut a red fluid runs. Thus much for Gades.