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Subgenus: Rhododendron Section: Rhododendron Subsection: Maddenia
Subgenus: Rhododendron Section: Rhododendron Subsection: Lapponica
Subgenus: Rhododendron Section: Rhododendron Subsection: Rhodorastra
Selected By: Baldsiefen, Warren
Selected By: Crown Estate Commissioners
Subgenus: Hymenanthes Section: Pontica Subsection: Fortunea
Subgenus: Rhododendron Section: Rhododendron Subsection: Triflora
Selected By: van Gelderen, D.M.
Selected By: Barto, James
Subgenus: Tsutsusi Section: Brachycalyx
Selected By: Cox, E.H.M.
Selected By: Gable, J.B.
Selected By: Stevenson, J.B.
Subgenus: Hymenanthes Section: Pontica Subsection: Pontica
Selected By: Royal Botanical Gardens, Wakehurst
Selected By: Greer, Harold E.
Selected By: Rare Find Nursery
Selected By: Caperci, J.F.
Selected By: Wieting, J.
Selected By: Exbury
Selected By: Janeck, Kenneth
Selected By: Royal Horticultural Society
Selected By: Leach, Dr. David G.
Selected By: Phetteplace, Dr. Carl H
Selected By: Childers, A.A & M.
Selected By: Hachmann, Hans
Subgenus: Rhododendron Section: Rhododendron Subsection: Boothia
Subgenus: Rhododendron Section: Rhododendron Subsection: Moupinensia
Subgenus: Hymenanthes Section: Pontica Subsection: Argyrophylla
Subgenus: Rhododendron Section: Vireya Subsection: Euvireya
Subgenus: Hymenanthes Section: Pontica Subsection: Neriiflora