Genus Rhododendron Acquires New Species
'Arctic Tern' may be a rhododendron after all. Researchers Dr. Walter Judd (University of Florida), a specialist in rhododendrons, and Dr. Katherine Kron (University of North Carolina) have placed all species of Ledum within the genus Rhododendron.
This recent development was reported in the October 1990 Rhododendron Species Foundation Newsletter based on information from Douglasia, the newsletter of the Washington Plant Society. Dr. Judd and Dr. Kron have used sophisticated comparative techniques to show that if the genus Ledum were included in the genus Rhododendron, then the later genus would include all descendants of a common ancestor. Thus it appears that the Northwest may have two new native rhododendron species: Rhododendron groenlandicum and Rhododendron glandulosum.