| Rhododendron aberconwayi Cowan |
Accepted |
13 |
| Rhododendron adenopodum Franch. |
Accepted |
13 |
| Rhododendron alabamense Rehder |
Accepted |
13 |
| Rhododendron albiflorum Hook. |
Accepted |
13 |
| Rhododendron ambiguum Hemsl. |
Accepted |
26 |
| Rhododendron amesiae Rehder & E. H. Wilson |
Accepted |
26 |
| Rhododendron anthopogon D. Don |
Accepted |
13 |
| Rhododendron aperantum Balf. & Kingdon-Ward |
Accepted |
13 |
| Rhododendron araiophyllum Balf. & W. W. Sm. |
Accepted |
13 |
| Rhododendron arborescens (Pursh) Torr. |
Accepted |
13 |
| Rhododendron arboreum Sm. |
Accepted |
12 |
| Rhododendron argyrophyllum Franch. |
Accepted |
13 |
| Rhododendron arizelum Balf. & Forrest |
Accepted |
13 |
| Rhododendron atlanticum (Ashe) Rehder |
Accepted |
13 |
| Rhododendron augustinii Hemsl. |
Accepted |
26 |
| Rhododendron aureum Georgi |
Accepted |
13 |
| Rhododendron auriculatum Hemsl. |
Accepted |
13 |
| Rhododendron auritum Tagg |
Accepted |
13 |
| Rhododendron austrinum (Small) Rehder |
Accepted |
13 |
| Rhododendron baileyi Balf. |
Accepted |
26 |
| Rhododendron bainbridgeanum Tagg & Forrest |
Accepted |
13 |
| Rhododendron bakeri Hume |
Accepted |
13 |
| Rhododendron barbatum Wall. ex G. Don |
Accepted |
13 |
| Rhododendron boothii Nutt. |
Accepted |
13 |
| Rhododendron calendulaceum (Michx.) Torr. |
Accepted |
26 |
| Rhododendron camelliiflorum Hook. |
Accepted |
13 |
| Rhododendron campanulatum D. Don |
Accepted |
13 |
| Rhododendron campylocarpum Hook. |
Accepted |
13 |
| Rhododendron camtschaticum Pall. |
Accepted |
12 |
| Rhododendron canadense (L.) Torr. |
Accepted |
26 |
| Rhododendron canescens (Michx.) Sweet |
Accepted |
13 |
| Rhododendron capitatum Maxim. |
Accepted |
26 |
| Rhododendron catawbiense Michx. |
Accepted |
13 |
| Rhododendron ciliatum Hook. |
Accepted |
13 |
| Rhododendron cinnabarinum Hook. |
Accepted |
39 |
| Rhododendron columbianum (Piper) Harmaja |
Accepted |
13 |
| Rhododendron complexum Balf. & W. W. Sm. |
Accepted |
39 |
| Rhododendron concinnum Hemsl. |
Accepted |
26 |
| Rhododendron cumberlandense E. L. Braun |
Accepted |
13 |
| Rhododendron cuneatum W. W. Sm. |
Accepted |
39 |
| Rhododendron dasypetalum Balf. & Forrest |
Accepted |
26 |
| Rhododendron dauricum L. |
Accepted |
13 |
| Rhododendron davidsonianum Rehder & E. H. Wilson |
Accepted |
26 |
| Rhododendron edgarianum Rehder & E. H. Wilson |
Accepted |
26 |
| Rhododendron edgeworthii Hook. |
Accepted |
13 |
| Rhododendron fastigiatum Franch. |
Accepted |
13 |
| Rhododendron ferrugineum L. |
Accepted |
13 |
| Rhododendron flammeum (Michx.) Sarg. |
Accepted |
13 |
| Rhododendron flavidum Franch. |
Accepted |
13 |
| Rhododendron fulgens Hook. |
Accepted |
13 |
| Rhododendron grande Wight |
Accepted |
13 |
| Rhododendron griffithianum Wight |
Accepted |
13 |
| Rhododendron hancockii Hemsl. |
Accepted |
13 |
| Rhododendron heliolepis Franch. |
Accepted |
39 |
| Rhododendron hirsutum L. |
Accepted |
13 |
| Rhododendron hodgsonii Hook. |
Accepted |
13 |
| Rhododendron hookeri Nutt. |
Accepted |
13 |
| Rhododendron indicum (L.) Sweet |
Accepted |
13 |
| Rhododendron intricatum Franch. |
Accepted |
13 |
| Rhododendron keysii Nutt. |
Accepted |
39 |
| Rhododendron lanatum Hook. |
Accepted |
13 |
| Rhododendron lapponicum (L.) Wahlenb. |
Accepted |
13 |
| Rhododendron lepidotum Wall. ex G. Don |
Accepted |
13 |
| Rhododendron leptothrium Balf. & Forrest |
Accepted |
13 |
| Rhododendron luteum Sweet |
Accepted |
13 |
| Rhododendron mackenzianum Forrest |
Accepted |
13 |
| Rhododendron macrophyllum D. Don ex G. Don |
Accepted |
13 |
| Rhododendron maddenii Hook. |
Accepted |
39 |
| Rhododendron maximum L. |
Accepted |
13 |
| Rhododendron micranthum Turcz. |
Accepted |
13 |
| Rhododendron minus Michx. |
Accepted |
13 |
| Rhododendron mucronulatum Turcz. |
Accepted |
13 |
| Rhododendron niveum Hook. |
Accepted |
13 |
| Rhododendron nudiflorum Torr. |
Accepted |
13 |
| Rhododendron nuttallii Booth ex Nutt. |
Accepted |
13 |
| Rhododendron oblongifolium (Small) Millais |
Accepted |
13 |
| Rhododendron obtusum Hort. ex Wats. |
Accepted |
13 |
| Rhododendron occidentale (Torr. & A. Gray) A. Gray |
Accepted |
13 |
| Rhododendron pemakoense Kingdon-Ward |
Accepted |
13 |
| Rhododendron pendulum Hook. |
Accepted |
13 |
| Rhododendron periclymenoides (Michx.) Shinners |
Accepted |
13 |
| Rhododendron ponticum L. |
Accepted |
13 |
| Rhododendron prinophyllum (Small) Millais |
Accepted |
13 |
| Rhododendron prunifolium (Small) Millais |
Accepted |
13 |
| Rhododendron redowskianum Maxim. |
Accepted |
13 |
| Rhododendron roseum (Loisel.) Rehder |
Accepted |
13 |
| Rhododendron rubiginosum Franch. |
Accepted |
26 |
| Rhododendron rupicola W. W. Sm. |
Accepted |
13 |
| Rhododendron rushforthii Argent & D. F. Chamb. |
Accepted |
13 |
| Rhododendron russatum Balf. & Forrest |
Accepted |
26 |
| Rhododendron saluenense Franch. |
Accepted |
13 |
| Rhododendron schlippenbachii Maxim. |
Accepted |
13 |
| Rhododendron searsiae Rehder & E. H. Wilson |
Accepted |
26 |
| Rhododendron serrulatum (Small) Millais |
Accepted |
13 |
| Rhododendron setosum D. Don |
Accepted |
13 |
| Rhododendron siderophyllum Franch. |
Accepted |
39 |
| Rhododendron simsii Planch. |
Accepted |
13 |
| Rhododendron stamineum Franch. |
Accepted |
13 |
| Rhododendron tapetiforme Balf. & Kingdon-Ward |
Accepted |
39 |
| Rhododendron thomsonii Hook. |
Accepted |
13 |
| Rhododendron triflorum Hook. |
Accepted |
13 |
| Rhododendron truncatovarium L. M. Gao & D. Z. Li |
Accepted |
13 |
| Rhododendron tutcherae Hemsl. & E. H. Wilson |
Accepted |
13 |
| Rhododendron vaccinioides Hook. |
Accepted |
13 |
| Rhododendron vaseyi A. Gray |
Accepted |
13 |
| Rhododendron vialii Delavay & Franch. |
Accepted |
13 |
| Rhododendron virgatum Hook. |
Accepted |
13 |
| Rhododendron viscosum (L.) Torr. |
Accepted |
13 |
| Rhododendron wallichii Hook. |
Accepted |
13 |
| Rhododendron wightii Hook. |
Accepted |
13 |
| Rhododendron xanthocodon Hutch. |
Accepted |
39 |
| Rhododendron yunnanense Franch. |
Accepted |
26 |
| Rhododendron zaleucum Balf. & W. W. Sm. |
Accepted |
26 |
| Rhododendron acuminatum Hook. |
Unresolved |
13 |
| Rhododendron adamsii Rehder |
Unresolved |
13 |
| Rhododendron aequabile J. J. Sm. |
Unresolved |
13 |
| Rhododendron albrechtii Maxim. |
Unresolved |
13 |
| Rhododendron album Blume |
Unresolved |
13 |
| Rhododendron amagianum (Makino) Makino ex H. Hara |
Unresolved |
13 |
| Rhododendron anagalliflorum Wernham |
Unresolved |
13 |
| Rhododendron apoanum Stein |
Unresolved |
13 |
| Rhododendron arfskianum Becc. |
Unresolved |
13 |
| Rhododendron bagobonum H. F. Copel. |
Unresolved |
13 |
| Rhododendron batemanii Hook. |
Unresolved |
13 |
| Rhododendron beyerinckianum Koord. |
Unresolved |
13 |
| Rhododendron buxifolium H. Low ex Hook. |
Unresolved |
13 |
| Rhododendron caliginis Kores |
Unresolved |
13 |
| Rhododendron caucasicum Pall. |
Unresolved |
13 |
| Rhododendron christianae Sleumer |
Unresolved |
13 |
| Rhododendron commonae F. Först. |
Unresolved |
13 |
| Rhododendron crassifolium Stapf |
Unresolved |
13 |
| Rhododendron cuneifolium Stapf |
Unresolved |
13 |
| Rhododendron cunninghamii K. Koch |
Unresolved |
13 |
| Rhododendron dianthosmum Sleumer |
Unresolved |
13 |
| Rhododendron elliottii Watt ex Brandis |
Unresolved |
13 |
| Rhododendron eximium Nutt. |
Unresolved |
13 |
| Rhododendron falconeri Hook. |
Unresolved |
13 |
| Rhododendron formosum Kingdon-Ward |
Unresolved |
13 |
| Rhododendron gaultheriifolium J. J. Sm. |
Unresolved |
13 |
| Rhododendron glaucum Hook. |
Unresolved |
13 |
| Rhododendron herzogii Warb. |
Unresolved |
13 |
| Rhododendron himantodes Sleumer |
Unresolved |
13 |
| Rhododendron inconspicuum J. J. Sm. |
Unresolved |
13 |
| Rhododendron inundatum Sleumer |
Unresolved |
13 |
| Rhododendron invasorium Sleumer |
Unresolved |
13 |
| Rhododendron japonicum (A. Gray) Suringar |
Unresolved |
13 |
| Rhododendron johnstoneanum Watt ex Hutch. |
Unresolved |
13 |
| Rhododendron kaempferi Planch. |
Unresolved |
13 |
| Rhododendron kiusianum Makino |
Unresolved |
13 |
| Rhododendron konori Becc. |
Unresolved |
13 |
| Rhododendron laetum J. J. Sm. |
Unresolved |
13 |
| Rhododendron lochae F. Muell. |
Unresolved |
13 |
| Rhododendron loranthiflorum Sleumer |
Unresolved |
13 |
| Rhododendron lucidum Nutt. |
Unresolved |
13 |
| Rhododendron lysolepis Hutch. |
Unresolved |
13 |
| Rhododendron macabeanum Watt ex Balf. |
Unresolved |
13 |
| Rhododendron macgregoriae F. Muell. |
Unresolved |
13 |
| Rhododendron manipurense Balf. & Watt |
Unresolved |
39 |
| Rhododendron multicolor Miq. |
Unresolved |
13 |
| Rhododendron obovatum Hook. |
Unresolved |
13 |
| Rhododendron orbiculatum Ridl. |
Unresolved |
13 |
| Rhododendron parryae Hutch. |
Unresolved |
13 |
| Rhododendron patulum Kingdon-Ward |
Unresolved |
26 |
| Rhododendron phaeochitum F. Muell. |
Unresolved |
13 |
| Rhododendron phaeopeplum Sleumer |
Unresolved |
13 |
| Rhododendron pneumonanthum Sleumer |
Unresolved |
13 |
| Rhododendron praetervisum Sleumer |
Unresolved |
13 |
| Rhododendron quadrasianum S. Vidal |
Unresolved |
13 |
| Rhododendron ruttenii J. J. Sm. |
Unresolved |
13 |
| Rhododendron santapaui Sastry & al. |
Unresolved |
13 |
| Rhododendron smithii Nutt. |
Unresolved |
13 |
| Rhododendron speciosum Salisb. |
Unresolved |
13 |
| Rhododendron stapfianum Hemsl. ex Prain |
Unresolved |
13 |
| Rhododendron tuba Sleumer |
Unresolved |
13 |
| Rhododendron vanderbiltianum Merr. |
Unresolved |
13 |
| Rhododendron × sochadzeae Kharadze & Davlian. |
Unresolved |
13 |
| Rhododendron tomentosum Harmaja |
Synonym of Ledum palustre L. |
26 |
| Rhododendron groenlandicum (Oeder) Kron & Judd |
Synonym of Ledum palustre subsp. groenlandicum (Oeder) Hultén |
13 |
| Rhododendron adenophorum Balf. & W. W. Sm. |
Synonym of Rhododendron adenogynum Diels |
13 |
| Rhododendron arborescens None |
Synonym of Rhododendron arborescens (Pursh) Torr. |
13 |
| Rhododendron chasmanthum Diels |
Synonym of Rhododendron augustinii subsp. chasmanthum (Diels) Cullen |
26 |
| Rhododendron riparium Kingdon-Ward |
Synonym of Rhododendron calostrotum Balf. & Kingdon-Ward |
13 |
| Rhododendron camtschaticum None |
Synonym of Rhododendron camtschaticum Pall. |
12 |
| Therorhodion glandulosum Standl. ex Small |
Synonym of Rhododendron camtschaticum var. glandulosum (Standl.) B. Boivin |
12 |
| Rhododendron canescens None |
Synonym of Rhododendron canescens (Michx.) Sweet |
13 |
| Rhododendron tsangpoense Kingdon-Ward |
Synonym of Rhododendron charitopes subsp. tsangpoense (Kingdon-Ward) Cullen |
26 |
| Rhododendron lyi H. Lév. |
Synonym of Rhododendron ciliicalyx subsp. lyi (H. Lév.) R. C. Fang |
13 |
| Rhododendron pseudoyanthinum Balf. & Hutch. |
Synonym of Rhododendron concinnum Hemsl. |
26 |
| Rhododendron ravum Balf. & W. W. Sm. |
Synonym of Rhododendron cuneatum W. W. Sm. |
39 |
| Rhododendron cunninghamii T. More |
Synonym of Rhododendron cunninghamii K. Koch |
13 |
| Rhododendron dalhousieae H. f |
Synonym of Rhododendron dalhousieae Hook. |
13 |
| Rhododendron charianthum Hutch. |
Synonym of Rhododendron davidsonianum Rehder & E. H. Wilson |
26 |
| Rhododendron diaprepes Balf. & W. W. Sm. |
Synonym of Rhododendron decorum subsp. diaprepes (Balf. & W. W. Sm.) T. L. Ming |
13 |
| Rhododendron apodectum Balf. & W. W. Sm. |
Synonym of Rhododendron dichroanthum subsp. apodectum (Balf. & W. W. Sm.) Cowan |
13 |
| Rhododendron chaetomallum Balf. & Forrest |
Synonym of Rhododendron haematodes subsp. chaetomallum (Balf. & Forrest) D. F. Chamb. |
13 |
| Rhododendron brevistylum Franch. |
Synonym of Rhododendron heliolepis Franch. |
39 |
| Rhododendron pholidotum Balf. & W. W. Sm. |
Synonym of Rhododendron heliolepis Franch. |
39 |
| Rhododendron oporinum Balf. & Kingdon-Ward |
Synonym of Rhododendron heliolepis var. oporinum (Balf. & Kingdon-Ward) A. L. Chang |
26 |
| Rhododendron macranthum (Bunge) G. Don |
Synonym of Rhododendron indicum (L.) Sweet |
13 |
| Rhododendron shepherdii Nutt. |
Synonym of Rhododendron kendrickii Nutt. |
13 |
| Rhododendron parvifolium Adams |
Synonym of Rhododendron lapponicum (L.) Wahlenb. |
13 |
| Rhododendron amamiense Ohwi |
Synonym of Rhododendron latoucheae Franch. |
13 |
| Rhododendron flavum (Hoffmanns.) G. Don |
Synonym of Rhododendron luteum Sweet |
13 |
| Rhododendron calophyllum Nutt. |
Synonym of Rhododendron maddenii Hook. |
39 |
| Rhododendron polyandrum Hutch. |
Synonym of Rhododendron maddenii Hook. |
39 |
| Rhododendron crassum Franch. |
Synonym of Rhododendron maddenii subsp. crassum (Franch.) Cullen |
26 |
| Rhododendron sichotense Pojark. |
Synonym of Rhododendron mucronulatum subsp. sichotense (Pojark.) A. P. Khokhr. |
13 |
| Rhododendron kotschyi Simonk. |
Synonym of Rhododendron myrtifolium Schott & Kotschy |
13 |
| Rhododendron nakaharae Hay |
Synonym of Rhododendron nakaharae Hayata |
13 |
| Rhododendron ramosissimum Franch. |
Synonym of Rhododendron nivale subsp. boreale Philipson & M. N. Philipson |
26 |
| Rhododendron violaceum Rehder & E. H. Wilson |
Synonym of Rhododendron nivale subsp. boreale Philipson & M. N. Philipson |
26 |
| Rhododendron o-murasaki |
Synonym of Rhododendron o-murasaki Makino |
13 |
| Rhododendron artosquameum Balf. & Forrest |
Synonym of Rhododendron oreotrephes W. W. Sm. |
39 |
| Rhododendron exquisitum Hutch. |
Synonym of Rhododendron oreotrephes W. W. Sm. |
39 |
| Rhododendron oreotrephes |
Synonym of Rhododendron oreotrephes W. W. Sm. |
39 |
| Rhododendron timeteum Balf. & Forrest |
Synonym of Rhododendron oreotrephes W. W. Sm. |
39 |
| Rhododendron rex None |
Synonym of Rhododendron rex H. Lév. |
26 |
| Rhododendron desquamatum Balf. & Forrest |
Synonym of Rhododendron rubiginosum Franch. |
26 |
| Rhododendron achroanthum Balf. & W. W. Sm. |
Synonym of Rhododendron rupicola W. W. Sm. |
13 |
| Rhododendron cosmetum Balf. & Forrest |
Synonym of Rhododendron saluenense var. prostratum (W. W. Sm.) R. C. Fang |
26 |
| Rhododendron prostratum W. W. Sm. |
Synonym of Rhododendron saluenense var. prostratum (W. W. Sm.) R. C. Fang |
26 |
| Rhododendron schlippenbachii |
Synonym of Rhododendron schlippenbachii Maxim. |
13 |
| Rhododendron drumonium Balf. & Kingdon-Ward |
Synonym of Rhododendron telmateium Balf. & W. W. Sm. |
26 |
| Rhododendron idoneum Balf. & W. W. Sm. |
Synonym of Rhododendron telmateium Balf. & W. W. Sm. |
26 |
| Rhododendron bauhiniiflorum Watt ex Hutch. |
Synonym of Rhododendron triflorum var. bauhiniiflorum (Watt) C. I. Cullen & D. F. Chamb. |
13 |
| Rhododendron concatenans Hutch. |
Synonym of Rhododendron xanthocodon Hutch. |
39 |
| Rhododendron yungningense |
Synonym of Rhododendron yungningense Balf. ex Hutch. |
None |
| Rhododendron aechmophyllum Balf. & Forrest |
Synonym of Rhododendron yunnanense Franch. |
26 |