The tree grows to the height of five cubits, and has thorns upon it: the trunk is hard and spiral, and thicker than that of the incense-tree, and much more so at the root than at the upper part of the tree. Some authors have said that the bark is smooth like that of the arbute, others, that it is rough and covered with thorns: it has the leaf of the olive, but more wavy, with sharp points at the edges: Juba says, however, that it resembles the leaf of the olusatrum. Some again say that it resembles the juniper,[1] only that it is rougher and bristling with thorns, and that the leaves are of a rounder shape, though they have exactly the taste of the juniper. There have been some writers who have incorrectly asserted that both myrrh and frankincense are the product of the same tree.