| Gattung: | Rhododendron L. |
| Familie: | Ericaceae |
| Arten: | etwa 500 |
| Vorkommen: | Nordhalbkugel, wenige Arten auch Neuguinea und Australien |
| Sträucher und Bäume mit auffälligen Doldenblüten, häufig als Ziepflanzen eingesetzt. Leben vorwiegen auf saueren, feuchten Böden, gelegentlich auch auf Kalk. | |
| Arten: | |
| Rhododendron aberconwayi Cow. | |
| Rhododendron adenogynum Diels | |
| Rhododendron adenopodum Franch. | |
| Rhododendron alabamense Rehd. | |
| Rhododendron albiflorum W.J.Hook. | |
| Rhododendron albrechtii Max. | |
| Rhododendron alutaceum var. alutaceum Balf. f. et W.W.Sm. | |
| Rhododendron alutaceum var. iodes | |
| Rhododendron alutaceum var. russotinctum | |
| Rhododendron ambiguum Hemsl. | |
| Rhododendron amesiae Rehd. et Wils. | |
| Rhododendron anthopogon subsp. anthopogon D.Don. | |
| Rhododendron anthopogon subsp. hypenanthum | |
| Rhododendron aperantum Balf. f. et K.Ward | |
| Rhododendron arborescens (Pursh) Torr. | |
| Rhododendron argyrophyllum Franch. | |
| Rhododendron argyrophyllum subsp. argyrophyllum | |
| Rhododendron argyrophyllum subsp. hypoclaucum | |
| Rhododendron argyrophyllum subsp. nankingense | |
| Rhododendron argyrophyllum subsp. omeiense | |
| Rhododendron atlanticum Rehd. |  |
| Rhododendron augustinii Hemsl. | |
| Rhododendron augustinii subsp. augustinii | |
| Rhododendron augustinii subsp. chasmanthum | |
| Rhododendron augustinii subsp. hardyi | |
| Rhododendron augustinii subsp. rubrum | |
| Rhododendron aureum var. aureum Georgi | |
| Rhododendron aureum var. hypopytis | |
| Rhododendron auriculatum Hemsl. | |
| Rhododendron austrinum Rehd. | |
| Rhododendron bakeri Lemm. et McMay | |
| Rhododendron basilicum Balf. f. et Smith | |
| Rhododendron beanianum Cowan | |
| Rhododendron brachyanthum subsp. brachyanthum Franch | |
| Rhododendron brachyanthum subsp. hypolepidotum | |
| Rhododendron brachycarpum subsp. brachycarpum D.Don | |
| Rhododendron brachycarpum subsp. fauriei | |
| Rhododendron bureavii Franch. | |
| Rhododendron calendulaceum (Michx.) Torr. | |
| Rhododendron callimorphum var. callimorphum Balf. f. et W.W.Smith | |
| Rhododendron callimorphum var. myiagrum | |
| Rhododendron calophytum Franch. | |
| Rhododendron calostrotum subsp. calostrotum Balf. f. et Ward | |
| Rhododendron calostrotum subsp. keleticum | |
| Rhododendron calostrotum subsp. riparioides | |
| Rhododendron calostrotum subsp. riparium | |
| Rhododendron campanulatum subsp. aeruginosum | |
| Rhododendron campanulatum subsp. campanulatum D.Don | |
| Rhododendron campylocarpum subsp. caloxanthum | |
| Rhododendron campylocarpum subsp. campylocarpum Hook.f. | |
| Rhododendron campylogynum Fr. | |
| Rhododendron camtschaticum subsp. camtschaticum Pall. | |
| Rhododendron camtschaticum subsp. glandulosum | |
| Rhododendron canadense Torr. |  |
| Rhododendron canescens (Michx.) Sw. | |
| Rhododendron capitatum Max. | |
| Rhododendron catawbiense Michx. | |
| Rhododendron caucasicum Pall. | |
| Rhododendron cephalanthum Franch. | |
| Rhododendron chamaethomsonii var. chamaedoron | |
| Rhododendron chamaethomsonii var. chamaethauma | |
| Rhododendron chamaethomsonii var. chamaethomsonii (Tagg et Forr.) Cowan & David | |
| Rhododendron championae Hook. |  |
| Rhododendron charitopes subsp. charitopes Balf.f. et Farrer | |
| Rhododendron charitopes subsp. tsangpoense | |
| Rhododendron ciliatum Hook. |  |
| Rhododendron cinnabarinum subsp. cinnabarinum Hook. | |
| Rhododendron cinnabarinum subsp. tamaense | |
| Rhododendron cinnabarinum subsp. xanthocodon | |
| Rhododendron citriniflorum var. citriniflorum Balf.f. et Forr. | |
| Rhododendron citriniflorum var. horaeum | |
| Rhododendron clementinae Forr. | |
| Rhododendron complexum Balf. f. et W.W.Smith | |
| Rhododendron concinnum Hemsl. | |
| Rhododendron cuneatum W.W.Smith | |
| Rhododendron dauricum L. | |
| Rhododendron decorum Franch. | |
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|
Rhododendron dendricola Hutch. aus den höheren Regionen Myanmars |
|
| Rhododendron diaprepes Balf.f. et W.W.Smith | |
| Rhododendron dichroanthum subsp. apodectum | |
| Rhododendron dichroanthum subsp. dichroanthum Diels | |
| Rhododendron dichroanthum subsp. scyphocalyx | |
| Rhododendron dichroanthum subsp. septentrionale | |
| Rhododendron edgarianum Rehd. et Wils. | |
| Rhododendron fastigiatum Franch. | |
| Rhododendron ferrugineum L. | |
| Rhododendron flammeum (Michx.) Sarg. | |
| Rhododendron flavidum Franch. | |
| Rhododendron fletcherianum Davidian | |
| Rhododendron floccigerum Franch. | |
| Rhododendron floribundum Franch. | |
| Rhododendron formosum Kingdon-Ward |  |
| Rhododendron forrestii subsp. forrestii Balf.f. et Diels | |
| Rhododendron forrestii subsp. papillatum | |
| Rhododendron fortunei subsp. discolor | |
| Rhododendron fortunei subsp. fortunei Lindl. | |
| Rhododendron fragariflorum Kingd. Ward | |
| Rhododendron fulgens Hook.f. | |
| Rhododendron glabrius Nak. | |
| Rhododendron glaucophyllum var. album | |
| Rhododendron glaucophyllum var. glaucophyllum Rehd. | |
| Rhododendron glaucophyllum var. tubiforme | |
| Rhododendron haematodes subsp. chaetomallum | |
| Rhododendron haematodes subsp. haematodes Franch. | |
| Rhododendron hanceanum Hemsl. | |
| Rhododendron heliolepis Franch. | |
| Rhododendron hemitrichotum Balf.f. et Forr. | |
| Rhododendron hippophaeoides var. hippophaeoides Balf.f. et W.W.Smith | |
| Rhododendron hippophaeoides var. occidentale | |
| Rhododendron hirsutum L. | |
| Rhododendron hirtipes Tagg | |
| Rhododendron hodgsonii Hook.f. | |
| Rhododendron hookeri Nutt. | |
| Rhododendron impeditum Balf.f. et W.W.Smith | |
| Rhododendron insigne Hemsl. et Wils. | |
| Rhododendron intricatum Franch. | |
| Rhododendron japonicum (Bl.) Schneid. |  |
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|
Rhododendron javanicum Benn.
subsp. javanicum |
|
| Rhododendron javanicum Benn. subsp. brookeanum ( Low ex Lindl. ) Argent & Phillipps |  |
| Rhododendron javanicum Benn. subsp. cockburnii Argent , A.L.Lamb & Phillipps | |
| Rhododendron javanicum Benn. subsp. gracile ( Lindl. ) Argent , A.L.Lamb & Phillipps | |
| Rhododendron javanicum Benn. subsp. moultonii ( Ridl. ) Argent | |
| Rhododendron javanicum Benn. subsp. schadenbergii ( Warb. ) Argent | |
| Rhododendron kaempferi Pl. | |
| Rhododendron keiskei Mio. | |
| Rhododendron keysii Nutt. | |
| Rhododendron kiusianum Mak. | |
| Rhododendron lacteum Franch. | |
| Rhododendron lapponicum (L.) Wahlbg. | |
| Rhododendron lepidostylum Balf.f. et Forr. | |
| Rhododendron lepidotum (Wall. ex) G.Don | |
| Rhododendron leptanthum Hayata |  |
| Rhododendron leptanthum Hayata var. warianum (Schltr.) Argent | |
| Rhododendron leucaspis Tagg | |
| Rhododendron longesquamatum Schneid. | |
| Rhododendron loranthiflorum Sleumer |  |
| Rhododendron ludlowii Cowan | |
| Rhododendron luteiflorum (Davidian) Cullen | |
| Rhododendron lutescens Franch. | |
 |
|
Rhododendron luteum Sweet aus dem Kaukasusgebiet bis zum südl.Mitteleuropa. |
|
| Rhododendron macgregoriae F.Muell. |  |
| Rhododendron macrophyllum G.Don | |
| Rhododendron macrosepalum Max. | |
| Rhododendron maculiferum Franch. | |
| Rhododendron maddenii Hook.f. | |
| Rhododendron maddenii Hook.f. subsp. crassum (Franch.) Cullen |  |
| Rhododendron mariesii Hemsl. et Wils. | |
| Rhododendron maximum L. | |
| Rhododendron mekongense var. mekongense Franch. | |
| Rhododendron mekongense var. rubrolineatum | |
| Rhododendron micranthum Turcz. | |
| Rhododendron minus var. chapmanii | |
| Rhododendron minus var. minus Michx. | |
| Rhododendron molle subsp. japonicum | |
| Rhododendron molle subsp. molle G.Don | |
| Rhododendron moupinense Franch. | |
| Rhododendron mucronatum G.Don | |
| Rhododendron mucronulatum Turcz. | |
| Rhododendron myrtifolium Schott. et Kotschy | |
| Rhododendron nakaharai Hay. | |
| Rhododendron neriiflorum Franch. | |
| Rhododendron x nikomontanum (Kom.) Nak. | |
| Rhododendron nipponicum Mats. | |
| Rhododendron nivale subsp. australe | |
| Rhododendron nivale subsp. boreale | |
| Rhododendron nivale subsp. nivale Hook. | |
| Rhododendron oblongifolium (Small) Mill. | |
| Rhododendron obtusum Pl. | |
| Rhododendron occidentale A.Gray | |
| Rhododendron orbiculare subsp. orbiculare Dec. | |
| Rhododendron orbiculare subsp. cardiobasis | |
| Rhododendron oreodoxa var. fargesii | |
| Rhododendron oreodoxa var. oreodoxa Franch. | |
| Rhododendron oreodoxa var. shensiense | |
| Rhododendron oreotrephes W.W.Smith | |
| Rhododendron orthocladum var. microleucum |  |
| Rhododendron orthocladum var. orthocladum Balf.f. et Forr. | |
| Rhododendron pachytrichum Franch. | |
| Rhododendron pemakoense Kingd. Ward | |
| Rhododendron periclymenoides (Michx.) Sh. | |
| Rhododendron phaeochrysum var. agglutinatum | |
| Rhododendron phaeochrysum var. levistratum | |
| Rhododendron phaeochrysum var. phaeochrysum Balf.f. et W.W.Sm. | |
| Rhododendron planetum Balf.f. | |
| Rhododendron polycladum Franch. | |
| Rhododendron polylepis Franch. | |
| Rhododendron ponticum L. | |
| Rhododendron poukhanense Lev. | |
| Rhododendron praestans Balf.f. et W.W.Sm. | |
| Rhododendron praevernum Hutch. | |
| Rhododendron primuliflorum Bur. et Franch. | |
| Rhododendron principis Bur. et Franch. | |
| Rhododendron prinophyllum (Sm.) Mill. |  |
| Rhododendron pruniflorum Hutch. | |
| Rhododendron prunifolium (Sm.) Mill. | |
| Rhododendron przewalskii Max. | |
| Rhododendron pseudochrysanthum Hayata | |
| Rhododendron pumilum Hook. | |
| Rhododendron purdomii Rehd. et Wils. | |
| Rhododendron racemosum Franch. | |
| Rhododendron reticulatum D.Don et G.Don | |
| Rhododendron rex subsp. fictolacteum | |
| Rhododendron rex subsp. gratum | |
| Rhododendron rex subsp. rex Lev. | |
| Rhododendron rex var. miniforme | |
| Rhododendron ririei Hemsl. et Wils. | |
| Rhododendron roxieanum var. cucullatum | |
| Rhododendron roxieanum var. roxieanum Forr. | |
| Rhododendron rubiginosum Franch. | |
| Rhododendron rufescens Franch. | |
| Rhododendron rupicola var. chryseum | |
| Rhododendron rupicola var. muliense | |
| Rhododendron rupicola var. rupicola W.W.Sm. | |
| Rhododendron russatum Balf.f. et Forr. | |
| Rhododendron saluenense subsp. chameunum | |
| Rhododendron saluenense subsp. saluenense Franch. | |
| Rhododendron sanguineum var. sanguineum Franch. | |
| Rhododendron sanguineum var. cloiophorum | |
| Rhododendron sanguineum var. didymoides | |
| Rhododendron sanguineum var. haemaleum | |
| Rhododendron sanguineum var. himertum | |
| Rhododendron sargentianum Rehd. et Wils. | |
| Rhododendron scabrifolium Franch. |  |
| Rhododendron schlippenbachii Max. | |
| Rhododendron scopulorum Hutch. | |
| Rhododendron scopulum (G.Z.Li) G.Z.Li |  |
| Rhododendron searsiae Rehd. et Wils. | |
| Rhododendron selense Franch. | |
| Rhododendron semibarbatum Max. | |
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|
Rhododendron serpyllifolium
Miq. |
|
| Rhododendron serrulatum (Sm.) Mill. | |
| Rhododendron setosum D. Don | |
| Rhododendron sherriffii Cowan | |
| Rhododendron shweliense Balf.f. et Forr. | |
| Rhododendron simsii Planch. |  |
| Rhododendron smirnowii Trautv. | |
| Rhododendron souliei Franch. | |
| Rhododendron strigillosum Franch. | |
| Rhododendron sutchuenense Franch. | |
| Rhododendron taliense Franch. | |
| Rhododendron tapetiforme Balf.f. et Kingd. Ward | |
| Rhododendron telmateium Balf.f. et W.W.Sm. | |
| Rhododendron tephropeplum Balf.f. et Farrer | |
| Rhododendron thayerianum Rehd. et Wils. | |
| Rhododendron thomsonii Hook. f. | |
| Rhododendron traillianum Forr. et W.W.Sm. | |
| Rhododendron trichocladum Franch. | |
| Rhododendron trichostomum Franch. | |
| Rhododendron triflorum var. bauhiniiflorum | |
| Rhododendron triflorum var. triflorum Hook. | |
| Rhododendron tschonoskii Max. | |
| Rhododendron ungernii Trautv. | |
| Rhododendron uniflorum Kingd. Ward | |
| Rhododendron uvarifolium Diels | |
| Rhododendron vaseyi A.Gray |  |
| Rhododendron vernicosum Franch. | |
| Rhododendron viscosum (L.) Torr. | |
| Rhododendron wallichii Hook.f. | |
| Rhododendron wardii var. puralbum | |
| Rhododendron wardii var. wardii W.W.Sm. | |
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|
Rhododendron westlandii Hemsl. (?) |
|
| Rhododendron weyrichii Max. | |
| Rhododendron wightii Hook.f. | |
| Rhododendron williamsianum Rehd. et Wils. | |
Rhododendron yakusimanum Nak. aus S-Japan. |
 |
| Rhododendron yungningense Balf.f. | |
| Rhododendron yunnanense Franch. | |
| Rhododendron zaleucum Balf.f. et W.W.Sm. | |