Northern Ontario Plant Database
Synonymy
Synonymy - Rhododendron x
Ericaceae Blueberry Family
Rhododendron ×bakeri (W.P.Lemmon & McKay) H.H.Hume, pro sp. (R. flammeum × R. canescens)
Baker's azalea
; Fr: rhododendron de Baker
- [=Azalea ×bakeri W.P.Lemmon & McKay, pro sp.]
Rhododendron ×columbianum (Piper) Harmaja
Columbia rhododendron
; Fr: rhododendron du Columbia
- [=Ledum columbianum Piper - basionym]
- [=Ledum glandulosum Nutt. var. columbianum (Piper) Hitchc.]
- [=Rhododendron columbianum (Piper) Harmaja]
Rhododendron ×furbishii (W.P.Lemmon & McKay) H.H.Hume, pro sp. (R. cumberlandense × R. arborescens)
Furbish's rhododendron
; Fr: rhododendron de Furbish
- [=Azalea furbishii W.P.Lemmon & McKay - basionym]
- [=Rhododendron 'Furbishii']
- [=Rhododendron ×furbishii 'Grenadine']
- [=Rhododendron ×furbishii 'Limonade']
- [=Rhododendron ×furbishii (W.P.Lemmon & McKay) Leach 1959, nom. illeg. isonym, non H.H.Hume 1948]
Rhododendron ×gandavense (K.Koch) Rehder (R. luteum × R. calendulaceum and/or R. nudiflorum)
Ghent hybrid azalea, Ghent hybrid rhododendron
; Fr: rhododendron hybride de Gand
- [=Azalea gandavensis K.Koch - basionym]
- [=Rhododendron ×gandavense 'Baltic Amber']
- [=Rhododendron ×gandavense 'Bijou de Gent-brugge']
- [=Rhododendron ×gandavense 'Coccinea Speciosa']
- [=Rhododendron ×gandavense 'Corneille']
- [=Rhododendron ×gandavense 'Daviesii']
- [=Rhododendron ×gandavense 'Gloria Mundi']
- [=Rhododendron ×gandavense 'Magic']
- [=Rhododendron ×gandavense 'Nancy Waterer']
- [=Rhododendron ×gandavense 'Narcissiflora']
- [=Rhododendron ×gandavense 'Pallas']
- [=Rhododendron ×gandavense 'Raphael de Smet']
- [=Rhododendron ×gandavense 'Souv. de Pres. Carnot']
- [=Rhododendron ×gandavense 'Unique']
- [=Rhododendron luteum × Rhododendron ×mortieri Sweet]
- [=Rhododendron luteum × R. 'Mortieri']
Rhododendron ×kosteranum C.K.Schneid. (R. japonicum × R. molle)
Mollis hybrid azalea
; Fr: rhododendron de Koster
- [=Rhododendron ×kosteranum 'Elliott']
- [=Rhododendron ×kosteranum 'Hugo Koster']
- [=Rhododendron ×kosteranum 'Miss Louisa Hunnewell']
- [=Rhododendron ×kosteranum 'Otto Lilienthal']
- [=Rhododendron mollis hort.]
Rhododendron ×laetevirens Rehder (R. carolinianum × R. ferrugineum)
Wilson rhododendron
; Fr: rhododendron de Wilson
- [=Rhododendron Laetevirens grex]
- [=Rhododendron ×laetevirens 'Wilson']