Rhododendron catawbiense, with common names Catawba rosebay, Catawba rhododendron, mountain rosebay, purple ivy, purple laurel, purple rhododendron, red laurel, rosebay, rosebay laurel, is a species of "Rhododendron" native to the eastern United States, growing mainly in the southern Appalachian Mountains from Virginia south to northern Alabama.
Purple ivy is not Rhododendron catawbiense.
( z1 species :polarity - :name ( z2 name :op "Rhododendron" :op "catawbiense" ) :domain ( z3 disease :name ( z4 name :op "Purple" :op "ivy" ) ) )