Genus Rhododendron Taxonomic Tree
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subgenus Azaleastrum section Azaleastrum Rhododendron hongkongense Rhododendron leptothrium Rhododendron ovatum Rhododendron vialii section Choniastrum Rhododendron championae Rhododendron hancockii Rhododendron latoucheae Rhododendron moulmainense Rhododendron stamineum subgenus Candidastrum Rhododendron albiflorum subgenus Hymenanthes section Ponticum subsection Arborea Rhododendron aboreum ssp arboreum ssp cinnamomeum ssp delavayi ssp nilagiricum ssp zeylanicum Rhododendron lanigerum Rhododendron niveum subsection Argyrophylla Rhododendron adenopodum Rhododendron argyrophyllum ssp argyrophyllum ssp hypoglaucum ssp omeinse ssp nankingense Rhododendron coryanum Rhododendron denudatum Rhododendron floribundum Rhododendron formosanum Rhododendron haofui Rhododendron hunnewellianum Rhododendron insigne Rhododendron longipes var chienianum var longipes Rhododendron pingianum Rhododendron ririei Rhododendron simiarum Rhododendron thayerianum subsection Auriculata Rhododendron auriculatum subsection Barbata Rhododendron argipeplum Rhododendron barbatum Rhododendron erosum Rhododendron exasperatum Rhododendron succothii subsection Campanulata Rhododendron campanulatum ssp campanulatum ssp aeruginosum Rhododendron wallichii subsection Campylocarpa Rhododendron callimorphum var callimorphum var myiagrum Rhododendron campylocarpum ssp campylocarpum ssp caloxanthum Rhododendron souliei Rhododendron wardii var wardii var puralbum subsection Falconera Rhododendron arizelum Rhododendron basilicum Rhododendron coriaceum Rhododendron falconeri ssp falconeri ssp eximium Rhododendron galactinum Rhododendron hodgsonii Rhododendron preptum Rhododendron rex ssp rex ssp fictolacteum ssp gratum Rhododendron rothschildii Rhododendron semnoides Rhododendron sinofalconeri subsection Fortunea Rhododendron asterochnoum Rhododendron calophytum var calophytum var openshawianum Rhododendron davidii Rhododendron decorum ssp decorum ssp diaprepes Rhododendron fortunei ssp fortunei ssp discolor Rhododendron glanduliferum Rhododendron griffithianum Rhododendron hemsleyanum Rhododendron huianum Rhododendron orbiculare ssp orbiculare ssp cardiobasis Rhododendron oreodoxa var oreodoxa var fargesii var shensiense Rhododendron platypodum Rhododendron praeteritum Rhododendron praevernum Rhododendron serotinum Rhododendron sutchuenense Rhododendron vernicosum subsection Fulgensia Rhododendron fulgens subsection Fulva Rhododendron fulvum ssp fulvum ssp fulvoides Rhododendron uvariifolium var uvariifolium var griseum subsection Glischra Rhododendron adenosum Rhododendron crinigerum var cringerum var euadenium Rhododendron glischroides Rhododendron glischrum ssp glischrum ssp rude Rhododendron habrotrichum Rhododendron recurvoides Rhododendron spilotum Rhododendron vesiculiferum subsection Grandia Rhododendron balangense Rhododendron grande Rhododendron kesangiae var kesangiae var album Rhododendron macabeanum Rhododendron magnificum Rhododendron montroseanum Rhododendron praestans Rhododendron protistum Rhododendron pudorosum Rhododendron sidereum Rhododendron sinogrande Rhododendron watsonii subsection Griersoniana Rhododendron griersonianum subsection Irrorata Rhododendron aberconwayi Rhododendron annae ssp annae ssp laxiflorum Rhododendron anthosphaerum Rhododendron araiophyllum Rhododendron gongshanense Rhododendron irroratum ssp irroratum ssp pogonostylum Rhododendron kendrickii Rhododendron lukiangense Rhododendron ramsdenianum Rhododendron tanastylum var tanastylum var pennivenium Rhododendron wrayi subsection Lanata Rhododendron flinckii Rhododendron lanatoides Rhododendron lanatum Rhododendron luciferum Rhododendron tsariense subsection Maculifera Rhododendron anwheiense Rhododendron longesquamatum Rhododendron maculiferum Rhododendron morii Rhododendron ochraceum Rhododendron pachysanthum Rhododendron pachytrichum Rhododendron pseudochrysanthum Rhododendron sikangense var sikangense var exquistum Rhododendron strigillosum subsection Neriiflora Haematodes alliance Rhododendron beanianum Rhododendron catacosmum Rhododendron coelicum Rhododendron haematodes ssp haematodes ssp chaetomallum Rhododendron piercei Rhododendron pocophorum var pocophorum var hemidartum Rhododendron mallotum Sanguineum alliance Rhododendron aperantum Rhododendron citriniflorum var citriniflorum var horaeum Rhododendron dichroanthum ssp dichroanthum ssp apodectum ssp scyphocalyx ssp septentrionale Rhododendron eudoxum var eudoxum var brunneifolium var mesopolium Rhododendron microgynum Rhododendron parmulatum Rhododendron sanguineum ssp sanguineum var sanguineum var himertum var cloiophorum var didymoides ssp didymum Rhododendron temenium var temenium var gilvum var dealbatum Forrestii alliance Rhododendron chamaethomsonii var chamaethomsonii var chamaedoron var chamaethauma Rhododendron forrestii ssp forestii ssp papillatum Neriiflorum alliance Rhododendron albertsenianum Rhododendron floccigerum Rhododendron miniatum Rhododendron neriiflorum ssp neriiflorum ssp agetum ssp phaedropum Rhododendron sperabile var sperabile var weihsiense Rhododendron sperabiloides subsection Parishia Rhododendron elliotti Rhododendron facetum Rhododendron kyawii subsection Pontica Rhododendron aureum var aureum var hypopytis Rhododendron brachycarpum ssp brachycarpum ssp fauriei Rhododendron catawbiense Rhododendron caucasicum Rhododendron degronianum ssp degronianum ssp heptamerum var heptamerum var hondoense var kyomaruense ssp yakushimanum Rhododendron hyperythrum Rhododendron macrophyllum Rhododendron makinoi Rhododendron maximum Rhododendron ponticum Rhododendron smirnowii Rhododendron ungernii subsection Selensia Rhododendron bainbridgeanum Rhododendron esetulosum Rhododendron hirtipes Rhododendron martinanum Rhododendron selense ssp selense ssp dasycladum ssp jucundum ssp setiferum subsection Taliensia Rhododendron adenogynum Rhododendron aganniphum var aganniphum var flavorufum Rhododendron alutaceum var alutaceum var russotinctum var iodes Rhododendron balfourianum Rhododendron bathyphyllum Rhododendron bhutanense Rhododendron bureavii Rhododendron bureaviodes Rhododendron clementinae Rhododendron coeloneuron Rhododendron elegantulum Rhododendron faberi Rhododendron mimetes var mimetes var simulans Rhododendron nigroglandulsom Rhododendron phaeochrysum var phaeochrysum var agglutinatum var levistratum Rhododendron prattii Rhododendron principis Rhododendron pronum Rhododendron proteoides Rhododendron przewalskii ssp przewalskii ssp dabanshanense Rhododendron purdomii Rhododendron roxieanum var roxieanum var cucullatum var oreonastes Rhododendron rufum Rhododendron sphaeroblatum Rhododendron taliense Rhododendron traillianum var traillianum var dictyotum Rhododendron wasonii var wenchuanense Rhododendron wiltonii Lacteum alliance Rhododendron beesianum Rhododendron dignabile Rhododendron lacteum Rhododendron wightii subsection Thomsonia Rhododendron cerasinum Rhododendron cyanocarpum Rhododendron eclecteum Rhododendron faucium Rhododendron hylaeum Rhododendron hookeri Rhododendron meddianum var meddianum var atrokermesinum Rhododendron sherriffii Rhododendron stewartianum Rhododendron subansiriense Rhododendron thomsonii ssp thomsonii ssp lopsangianum Rhododendron viscidifolium subsection Venatora Rhododendron venator subsection Williamsiana Rhododendron williamsianum subgenus Mumeazalea Rhododendron semibarbatum subgenus Pentanthera section Pentanthera subsection Pentanthera Rhododendron alabamense Rhododendron arborescens Rhododendron atlanticum Rhododendron austrinum Rhododendron calendulaceum Rhododendron canescens Rhododendron cumberlandense Rhododendron flammeum Rhododendron luteum Rhododendron occidentale Rhododendron periclymenoides Rhododendron prinophyllum Rhododendron prunifolium Rhododendron viscosum subsection Sinensia Rhododendron molle ssp molle ssp japonicum section Rhodora Rhododendron canadense Rhododendron vaseyi section Sciadorhodion Rhododendron albrechtii Rhododendron pentaphyllum Rhododendron quinquefolium Rhododendron schlippenbachii section Viscidula Rhododendron nipponicum subgenus Rhododendron section Pogonanthum Rhododendron anthopogon ssp anthopogon ssp hypenanthum Rhododendron anthopogonoides Rhododendron cephalanthum ssp cephalanthum ssp platyphllum Rhododendron collettianum Rhododendron fragrans Rhododendron kongboense Rhododendron laudandum var laudandum var temoense Rhododendron primuliflorum Rhododendron sargentianum Rhododendron trichostomum section Rhododendron subsection Afghanica Rhododendron afghanicum subsection Baileya Rhododendron baileyi subsection Boothia Rhododendron boothii Rhododendron chrysodoron Rhododendron dekatanum Rhododendron leptocarpum Rhododendron leucaspis Rhododendron megeratum Rhododendron sulfureum subsection Camelliiflora Rhododendron camelliiflorum subsection Campylogynum Rhododendron campylogynum subsection Caroliniana Rhododendron minus var minus var champmanii subsection Cinnabarinum Rhododendron cinnabarinum ssp cinnabarinum ssp tamaense ssp xanthocodon Rhododendron keysii subsection Edgeworthia Rhododendron edgeworthii Rhododendron pendulum Rhododendron seinghkuense subsection Fragariflora Rhododendron fragariiflorum subsection Genestieriana Rhododendron genestierianum subsection Glauca Rhododendron brachyanthum ssp brachyanthum ssp hypolepidotum Rhododendron charitopes ssp charitopes ssp tsangpoense Rhododendron glaucophyllum var glaucophyllum var album var tubiforme Rhododendron luteiflorum Rhododendron pruniflorum Rhododendron shweliense subsection Heliolepida Rhododendron bracteatum Rhododendron heliolepis var heliolepis var brevistylum var fumidum Rhododendron rubiginosum subsection Lapponica Rhododendron bulu Rhododendron capitatum Rhododendron complexum Rhododendron cuneatum Rhododendron dasypetalum Rhododendron fastigiatum Rhododendron flavidum Rhododendron hippophaeoides var hippophaeoides var occidentale Rhododendron impeditum Rhododendron intricatum Rhododendron lapponicum Rhododendron nitidulum var nitidulum var omeiense Rhododendron nivale ssp nivale ssp boreale ssp australe Rhododendron orthocladum var orthocladum var microleucum Rhododendron polycladum Rhododendron rupicola var rupicola var chryseum var muliense Rhododendron russatum Rhododendron setosum Rhododendron tapetiforme Rhododendron telmateium Rhododendron thymiflolium Rhododendron tsaii Rhododendron websterianum Rhododendron yungningense subsection Ledum Rhododendron groenlandicum Rhododendron hypoleucum Rhododendron neoglandulosum Rhododendron tolmachevii Rhododendron tomentosum ssp tomentosum ssp subarticum subsection Lepidota Rhododendron cowanianum Rhododendron lepidotum Rhododendron lowndesii subsection Maddenia Rhododendron burmanicum Rhododendron carneum Rhododendron ciliatum Rhododendron coxianum Rhododendron dalhousiae var dalhousiae var rhabdotum Rhododendron dendricola Rhododendron excellens Rhododendron fletcherianum Rhododendron formosum var formosum var inaequale Rhododendron horlickianum Rhododendron johnstoneanum Rhododendron leptocladon Rhododendron levinei Rhododendron liliiflorum Rhododendron lindleyi Rhododendron ludwigianum Rhododendron lyi Rhododendron maddenii ssp maddenii ssp crassum Rhododendron megacalyx Rhododendron nuttallii Rhododendron pachypodum Rhododendron pseudociliipes Rhododendron roseatum Rhododendron scopulorum Rhododendron taggianum Rhododendron valentinianum Rhododendron veitchianum Rhododendron walongense subsection Micrantha Rhododendron micranthum subsection Monantha Rhododendron monanthum subsection Moupinensia Rhododendron dendrocharis Rhododendron moupinense Rhododendron petrocharis subsection Rhododendron Rhododendron ferrugineum Rhododendron hirsutum Rhododendron myrtifolium subsection Rhodorastra Rhododendron dauricum Rhododendron mucronulatum var mucronulatum var taquetii Rhododendron sichotense subsection Saluenensia Rhododendron calostrotum ssp calostrotum ssp riparium ssp riparioides ssp keleticum Rhododendron saluenense ssp saluenense ssp chameunum subsection Scabrifolia Rhododendron hemitrichotum Rhododendron mollicomum Rhododendron pubescens Rhododendron racemosum Rhododendron scabrifolium var scabrifolium var spiciferum var pauciflorum Rhododendron spinuliferum subsection Tephropepia Rhododendron auritum Rhododendron hanceanum Rhododendron longistylum Rhododendron tephropeplum Rhododendron xanthostephanum subsection Trichoclada Rhododendron caesium Rhododendron lepidostylum Rhododendron mekongense var mekongense var rubrolineatum Rhododendron trichocladum Rhododendron viridescens subsection Triflora Augustinii/Triflorum Alliance
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