The island of Crete is the only place that produces the shrub called “tragion.”963 It is similar in appearance to the terebinth;964 a similarity which extends to the seed even, said to be remarkably efficacious for healing wounds made by arrows. The same island produces tragacanthe965 also, with a root which resembles that of the white thorn; it is very much preferred966 to that which is grown in Media or in Achaia; the price at which it sells is three denarii per pound.