Rowan Trees are an often overlooked native Irish tree. Although they are smaller than many other native trees, this does not make them any less beautiful. Typically they grow to a height of about 15 meters. In Irish, Rowan tree can be translated as Caorthann, which is also the Irish Translation for Mountain Ash. This is due to the fact that their leaves are very similar to the common ash tree, however, the trees are not related in any way.