Rhododendron maximum (Rose Tree) Rhododendron maximum is also called by various names such as great rhododendron, great laurel, rosebay rhododendron, American rhododendron or big rhododendron. The species of Rhododendron are found to be indigenous members of the eastern North America, from Nova Scotia that is south to northern Alabama. Description The Great Rhododendrons, otherwise known as the Great...