SysTax - Listings  
 

Rhododendron L. 'Rubescens'
Rhododendron L. 'Rubinetta'
Rhododendron L. 'Rubinstein'
Rhododendron L. 'Salute'
Rhododendron L. 'Sammetglut'
Rhododendron L. 'Sarina'
Rhododendron L. 'Satan'
Rhododendron L. 'Saxon Glow'
Rhododendron L. 'Scarlet Wonder'
Rhododendron L. 'Schneekoppe'
Rhododendron L. 'Schneewittchen'
Rhododendron L. 'Scintillation'
Rhododendron L. 'St. Merryn'
Rhododendron L. 'Sun Chariot'
Rhododendron L. 'Susan'
Rhododendron L. 'Tunis'
Rhododendron L. 'Ulfe'
Rhododendron L. 'Unique'
Rhododendron L. 'Unique' (Gand.-Klon.)
Rhododendron L. 'Unique' (Slocock)
Rhododendron L. 'Van Weerden Poelman'
Rhododendron L. 'Van Weerden Poelmann'
Rhododendron L. 'Viscy'
Rhododendron L. 'Vitalio'
Rhododendron L. 'Vuyk's Scarlet'
Rhododendron L. 'Wega'
Rhododendron L. 'Wilhelm III'
Rhododendron L. 'Willbrit'
Rhododendron Vuykiana
Rhododendron Vuykiana 'Vuyk's Rosyred'
Rhododendron Yakushimanum-Hybr.
Rhododendron aberconwayi Cowan
Rhododendron adamsii Rehder
Rhododendron adenogynum Diels
Rhododendron adenophorum Balf.f. & W.W.Sm.
Rhododendron adenosum
Rhododendron adoxum Balf.f. & Forrest
Rhododendron aeruginosum Hook.f.
Rhododendron aganniphum Balf.f. & . Kingdon-Ward
Rhododendron alabamense Rehder
Rhododendron albiflorum Hook.
Rhododendron albiflorum Hook. var. albiflorum Hook.
Rhododendron albiflorum Hook. var. warrenii (A.Nelson) M.A.Lane
Rhododendron albrechtii Maxim.
Rhododendron alpicola Rehder & E.H.Wilson
Rhododendron amagianum Makino
Rhododendron ambiguum Hemsl.
Rhododendron amesiae Rehder & E.H.Wilson
Rhododendron anthopogon D.Don
Rhododendron anthopogon D.Don 'Annapurna'
Rhododendron anwheiense E.H.Wilson
Rhododendron aperantum Balf. f. & Ward
Rhododendron apodectum Balf.f. & W.W.Sm.
Rhododendron arborescens (Pursh) Torr.
Rhododendron arborescens (Pursh) Torr. var. campbellii
Rhododendron arboreum Sm.
Rhododendron arboreum Sm. ssp. campbelliae (Hook.f.) Tagg
Rhododendron arboreum Sm. ssp. cinnamomeum (Wall. Cat.) Tagg
Rhododendron arboreum Sm. ssp. delavayi (Franch.) D.F.Chamb.
Rhododendron arboreum Sm. ssp. delavayi (Franch.) D.F.Chamb. var. fastuosum
Rhododendron arboreum Sm. var. fastuosum
Rhododendron arboreum Sm. var. roseum Lindl.
Rhododendron arendsii
Rhododendron argyrophyllum Franch.
Rhododendron argyrophyllum Franch. var. capillare
Rhododendron argyrophyllum Franch. var. cupulare Rehder & E.H.Wilson
Rhododendron argyrophyllum Franch. var. nankingense (Cowan) D.F.Chamb.
Rhododendron aroense
Rhododendron aroense 'Hamako'
Rhododendron artosquameum Balf.f. & Forrest
Rhododendron astrocalyx Balf.f. & Forrest
Rhododendron astrocalyx-Hybride
Rhododendron atlanticum (Ashe) Rehder
Rhododendron aucklandii Griffith.
Rhododendron aucklandii Hook.f.
Rhododendron augustinii Hemsl.
Rhododendron augustinii Hemsl. 'Statuette'
Rhododendron augustinii Hemsl. var. chasmanthum (Diels) Davidian
Rhododendron augustinii Hemsl. var. chasmanthum (Diels) Davidian 'Angfort'
Rhododendron aureum Georgi
Rhododendron auriculatum Hemsl.
Rhododendron auritum Tagg
Rhododendron austrinum Rehder
Rhododendron bachii Lév.
Rhododendron baileyi Balf. f. & Hook.f.
Rhododendron bakeri W.P.Lemmon & McKay
Rhododendron balangense W.P. Fang
Rhododendron barbatum
Rhododendron basilicum Balf.f. & W.W.Sm.
Rhododendron bauhiniiflorum Watt ex Hutch.
Rhododendron beesianum
Rhododendron bicolor Pursh
Rhododendron brachyanthum
Rhododendron brachycarpum D.Don ex G.Don
Rhododendron brachycarpum D.Don ex G.Don 'Montanum'
Rhododendron brachycarpum D.Don ex G.Don ssp. tigerstedtii Nitzelius
Rhododendron brachycarpum ssp. fauriei
Rhododendron bracteatum Rehder & Wilson
Rhododendron brettii Hemsl. & E.H.Wilson
Rhododendron bureavii Franch.
Rhododendron burmanicum Hutch.
Rhododendron burtii P.Woods
Rhododendron buxifolium Low. ex Hook.f.
Rhododendron calendulaceum (Michx.) Torr.
Rhododendron californicum Hook.f.
Rhododendron calophytum Franch.
Rhododendron calostrotum Balf.f. & Kingdon-Ward
Rhododendron calostrotum Balf.f. & Kingdon-Ward ssp. keleticum (Balf. f & Forrest) Cull.
Rhododendron calostrotum Balf.f. & Kingdon-Ward ssp. riparioides Cullen
Rhododendron calostrotum Balf.f. & Kingdon-Ward var. caliphilum (Hutch. & Ward.) Davidian
Rhododendron campanulatum D.Don
Rhododendron campanulatum D.Don ssp. aeruginosum (Hook.f.) D.F.Chamb.
Rhododendron campanulatum D.Don var. aeruginosum (Hook.f.) Nichols.
Rhododendron campbelliae Hook.f.
Rhododendron campylocarpum Hook.f.
Rhododendron campylocarpum Hook.f. 'Unique'
Rhododendron campylocarpum Hook.f. var. elatum
Rhododendron campylogynum Franch.
Rhododendron campylogynum Franch. 'Claret'
Rhododendron campylogynum Franch. var. myrtilloides (Balf.f. & Ward.) Davidian
Rhododendron camtschaticum Pall.
Rhododendron camtschaticum Pall. forma album
Rhododendron camtschaticum Pall. ssp. camtschaticum Pall.
Rhododendron camtschaticum Pall. ssp. glandulosum (Standl.) Hultén
Rhododendron camtschaticum Pall. var. cantschaticum Pall.
Rhododendron canadense (L.) Torr.
Rhododendron canadense (L.) Torr. 'Albiflorum'
Rhododendron canadense (L.) Torr. 'Rhodora'
Rhododendron canadensis Torr.
Rhododendron canescens (Michx.) Sweet
Rhododendron canescens var. canescens (Michx.) Sweet
Rhododendron cantabile Balf. f. ex Hutch.
Rhododendron capitatum Maxim.
Rhododendron carolinianum Rehder
Rhododendron carolinianum Rehder 'Album'
Rhododendron carolinianum Rehder 'Dora Amateis'
Rhododendron carolinianum Rehder 'Yellow Form'
Rhododendron catawbiense Michx.
Rhododendron catawbiense Michx. 'Album'
Rhododendron catawbiense Michx. 'Boursault'
Rhododendron catawbiense Michx. 'Compactum'
Rhododendron catawbiense Michx. 'Dr. V.H.Rutgers'
Rhododendron catawbiense Michx. 'English Roseum'
Rhododendron catawbiense Michx. 'Grandiflorum'
Rhododendron catawbiense Michx. 'Hybride'
Rhododendron catawbiense Michx. 'Roseum Elegans'
Rhododendron catawbiense-Hybride
Rhododendron catawbiense-Hybride 'Albert'
Rhododendron catawbiense-Hybride 'Carola'
Rhododendron catawbiense-Hybride 'Desiderius'
Rhododendron catawbiense-Hybride 'Donar'
Rhododendron catawbiense-Hybride 'Gisela'
Rhododendron catawbiense-Hybride 'Granat'
Rhododendron catawbiense-Hybride 'Grandiflorum'
Rhododendron catawbiense-Hybride 'Homer'
Rhododendron catawbiense-Hybride 'Humboldt'
Rhododendron catawbiense-Hybride 'Purpureum Elegans'
Rhododendron catawbiense-Hybride 'Raphael'
Rhododendron catawbiense-Hybride 'Scharnhorst'
Rhododendron caucasicum Pall.
Rhododendron caucasicum Pall. 'Boule de Neige'
Rhododendron caucasicum Pall. 'Cunningham's Sulphur'
Rhododendron caucasicum Pall. 'Cunningham's White'
Rhododendron caucasicum Pall. 'Jacksoni'
Rhododendron caucasicum Pall. 'Jacksonii'
Rhododendron caucasicum Pall. 'Ochroleucum'
Rhododendron caucasicum-Hybride
Rhododendron cerasinum Tagg
Rhododendron cf. proteoides
Rhododendron chamaethomsonii
Rhododendron chamaethomsonii var. chamaedoron
Rhododendron chapmanii A.Gray
Rhododendron charianthum Hutch.
Rhododendron charitopes Balf. f. & Farrer
Rhododendron chasmanthum Diels
Rhododendron cheilanthum Balf.f. & Forrest
Rhododendron chengshienianum Fang
Rhododendron chrysanthum Pall.
Rhododendron chryseum Balf.f. & Kingdon-Ward
Rhododendron chrysodoron Tagg ex Hutch.
Rhododendron ciliatum Hook.f.
Rhododendron cinnabarinum Hook.f.
Rhododendron cinnabarinum Hook.f. ssp. concatenans x ambiguum x desquamatum
Rhododendron cinnabarinum Hook.f. ssp. xanthocodon
Rhododendron cinnabarinum Hook.f. var. aestivale Hutch.
Rhododendron cinnabarinum Hook.f. var. blandfordiiflorum Hook.
Rhododendron cinnabarinum Hook.f. var. concatenans
Rhododendron cinnabarinum Hook.f. var. pallidum Bot. Mag.
Rhododendron cinnabarinum Hook.f. var. purpurellum Cowan.
Rhododendron cinnabarinum Hook.f. var. roylei Hook.
Rhododendron cinnamomeum Wall.
Rhododendron cissifolium
Rhododendron citriniflorum Balf.f. & Forrest
Rhododendron citriniflorum Balf.f. & Forrest ssp. horaeum
Rhododendron clementinae Forrest.
Rhododendron clementinae Forrest. ssp. aureodorsale W.P.Fang ex J.Q.Fu
Rhododendron coccineum
Rhododendron concatenans Hutch.
Rhododendron concinnum Hemsl.
Rhododendron concinnum Hemsl. var. pseudoyanthinum (Balf.f.) Davidian
Rhododendron crinigerum Franch.
Rhododendron croceum Balf.f. & W.W.Sm.
Rhododendron cubittii Hutchinson
Rhododendron cuffeanum Craib
Rhododendron cumberlandense E.L.Braun.
Rhododendron cuneatum W.W.Sm.
Rhododendron cyanocarpum (Franch.) W.W.Sm.
Rhododendron dalhousiae Hook.f.
Rhododendron dauricum L.
Rhododendron dauricum L. 'April Reign'
Rhododendron dauricum L. 'April Snow'
Rhododendron dauricum L. 'Staccato'
Rhododendron dauricum L. ssp. ledebourii
Rhododendron dauricum L. var. album
Rhododendron dauricum L. var. mucronulatum Sims
Rhododendron dauricum L. var. sempervirens Sims.
Rhododendron dauricum L. var. sempervirens Sims. 'Splendens'
Rhododendron dauricum L. var. sichotense
Rhododendron dauricum x mucronulatum
Rhododendron davidii Franch.
Rhododendron davidsonianum Rehder & E.H.Wilson
Rhododendron decorum Franch.
Rhododendron decorum Franch. ssp. decorum
Rhododendron decorum Franch. ssp. diaprepes (Balf.f. et W.W.Sm.) T.L.Ming
Rhododendron degronianum Carrière
Rhododendron degronianum Carrière forma angustifolium (Makino) Sealy
Rhododendron degronianum Carrière ssp. yakushimanum (Nakai) Hara
Rhododendron degronianum Carrière ssp. yakushimanum (Nakai) Hara 'Liane'
Rhododendron degronianum Carrière ssp. yakushimanum (Nakai) Hara 'Love Song'
Rhododendron degronianum Carrière var. heptamerum (Maxim.) Sealy
Rhododendron degronianum Carrière var. hondoense
Rhododendron delavayi Franch.
Rhododendron desquamatum Balf.f. & Forrest
Rhododendron detonsum Balf. f. & Forrest
Rhododendron diaprepes Balf f. & W.W.Sm.
Rhododendron dichroanthum Diels
Rhododendron dichroanthum Diels ssp. apodectum (Balf.f. & W.W.Sm.) Cowan.
Rhododendron dichroanthum Diels ssp. herpesticum (Balf.f. & Kingdon-Ward) Cowan.
Rhododendron dichroanthum Diels ssp. scyphocalyx (Balf.f. & Forrest) Cowan.
Rhododendron dichroanthum Diels var. scyphocalyx
Rhododendron didymum Balf.f. & Forrest
Rhododendron dilatatum Maxim.
Rhododendron dilatatum Miq.
Rhododendron discolor Franch.
Rhododendron edgeworthii
Rhododendron elliottii Watt ex Brandis
Rhododendron ellipticum Maxim.
Rhododendron eriogynum Balf. f. & W.W.Sm.
Rhododendron erosum
Rhododendron erythrocalix
Rhododendron erythrocalyx Balf.f. & Forrest
Rhododendron euchaites Balf.f. & Forrest
Rhododendron eudoxum
Rhododendron excellens Hemsl. et E.H.Wilson
Rhododendron exquisitum Hutch.
Rhododendron falconeri
Rhododendron fargesii Franch.
Rhododendron fargesii x fortunei
Rhododendron fastigiatum Franch.
Rhododendron fauriae Franch.
Rhododendron ferrugineum L.
Rhododendron ferrugineum L. forma alba
Rhododendron fictolacteum Balf.f.
Rhododendron flammeum (Michx.) Sarg.
Rhododendron flavidum Franch.
Rhododendron flavum G.Don
Rhododendron floribundum Franch.
Rhododendron fordii Hemsl.
Rhododendron formosanum Hemsl.
Rhododendron forrestii Balf.f. ex Diels
Rhododendron forrestii Balf.f. ex Diels 'Baden-Baden'
Rhododendron forrestii Balf.f. ex Diels 'Scarlet Wonder'
Rhododendron forrestii Balf.f. ex Diels var. repens (Balf.f. & Forrest) Cowan & Davidian
Rhododendron forrestii Balf.f. ex Diels var. repens (Balf.f. & Forrest) Cowan & Davidian 'Gertrud Schäle'
Rhododendron fortunei Lindl.
Rhododendron fortunei Lindl. ssp. discolor (Franch.) D.F.Chamb.
Rhododendron fortunei Lindl. ssp. fortunei
Rhododendron fortunei-Hybride
Rhododendron fufum
Rhododendron fulgens Hook.f.
Rhododendron fulvum Balf.f. & W.W.Sm.
Rhododendron galactinum Balf.f.
Rhododendron gandavense-Hybride
Rhododendron genestierianum Forrest
Rhododendron glischrum I.B.Balf. & W.W.Sm.
Rhododendron gracilentum F.Muell.
Rhododendron griersonianum Balf. f. & Forrest
Rhododendron griffithianum Wight
Rhododendron groenlandicum (Oeder) Kron & Judd
Rhododendron haemaleum Balf.f. & Forrest
Rhododendron haematodes Franch.
Rhododendron haematodes Franch. 'Bremen'
Rhododendron haematodes Franch. 'China Boy'
Rhododendron harrovianum Hemsl.
Rhododendron headforthianum Hutchinson
Rhododendron hedyosmum Balf. f.
Rhododendron heliolepis Franch.
Rhododendron hemsleyanum E.H.Wilson
Rhododendron herpesticum Balf.f. & Kingdon-Ward
Rhododendron hippophaeoides Balf.f. & W.W.Sm.
Rhododendron hippophaeoides Balf.f. & W.W.Sm. 'Be Ma Shan'
Rhododendron hippophaeoides Balf.f. & W.W.Sm. 'Bei-ma-Shan'
Rhododendron hirsutum L.
Rhododendron hirtipes Tagg
Rhododendron hodgonsii
Rhododendron hodgsonii
Rhododendron hongkongense Hutch.
Rhododendron horaeum Balf.f. & Forrest
Rhododendron houlstonii Hemsl. & E.H.Wilson
Rhododendron hunnewellianum Rehder & E.H.Wilson
Rhododendron hyperythrum Hayata
Rhododendron hypoleuca (Kom.) Harmaja
Rhododendron imbricatum Hort.
Rhododendron impeditum Balf.f. & W.W.Sm.
Rhododendron impeditum Balf.f. & W.W.Sm. 'Blue Tit'
Rhododendron impeditum Balf.f. & W.W.Sm. 'Blue Wonder'
Rhododendron impeditum Balf.f. & W.W.Sm. 'Gristede'
Rhododendron impeditum Balf.f. & W.W.Sm. 'Moerheim'
Rhododendron impeditum Balf.f. & W.W.Sm. 'Ramapo'
Rhododendron impeditum-Hybride
Rhododendron indicum (L.) Sweet
Rhododendron indicum (L.) Sweet 'Balsaminiflorum'
Rhododendron indicum (L.) Sweet 'Crispiflorum'
Rhododendron insigne Hemsl. & E.H.Wilson
Rhododendron insigne Hemsl. & E.H.Wilson 'Brigitte'
Rhododendron insigne-Hybride
Rhododendron intermedium Tausch
Rhododendron intricatum Franch.
Rhododendron irroratum Franch.
Rhododendron jangtzowense Balf.f. & Forrest
Rhododendron japonicum (A.Gray) J.V.Suringar
Rhododendron japonicum (A.Gray) J.V.Suringar 'Apple Blossom'
Rhododendron japonicum (A.Gray) J.V.Suringar 'Beethoven'
Rhododendron japonicum (A.Gray) J.V.Suringar 'Daviesii'
Rhododendron japonicum (A.Gray) J.V.Suringar 'Esmeralda'
Rhododendron japonicum (A.Gray) J.V.Suringar 'Favorite'
Rhododendron japonicum (A.Gray) J.V.Suringar 'Gabriele'
Rhododendron japonicum (A.Gray) J.V.Suringar 'Gretchen'
Rhododendron japonicum (A.Gray) J.V.Suringar 'Hatsugiri'
Rhododendron japonicum (A.Gray) J.V.Suringar 'J.S.Bach'
Rhododendron japonicum (A.Gray) J.V.Suringar 'Kermesina'
Rhododendron japonicum (A.Gray) J.V.Suringar 'Madame van Hecke'
Rhododendron japonicum (A.Gray) J.V.Suringar 'Nana Compressa'
Rhododendron japonicum (A.Gray) J.V.Suringar 'Purpel Triumph'
Rhododendron japonicum (A.Gray) J.V.Suringar 'Rosalind'
Rhododendron japonicum (A.Gray) J.V.Suringar 'Royal Command'
Rhododendron japonicum (A.Gray) J.V.Suringar 'Rubinstein'
Rhododendron japonicum (A.Gray) J.V.Suringar 'Schneewittchen'
Rhododendron japonicum (A.Gray) J.V.Suringar 'Signalglühen'
Rhododendron japonicum (Blume) C.K.Schneid.
Rhododendron japonicum-Hybride
Rhododendron javanicum Benn.
Rhododendron javanicum Benn. ssp. brockeanum
Rhododendron jenkinsii Nutt.
Rhododendron johnstoneanum Watt ex Hutchinson
Rhododendron kaempferi Planch.
Rhododendron kaempferi Planch. 'Kermesina'
Rhododendron kaempferi Planch. 'Multiflora'
Rhododendron kamtschaticum Pall.
Rhododendron kanehirai
Rhododendron kaslerianum
Rhododendron keiskei Miq.
Rhododendron keiskei Miq. var. cordifolia
Rhododendron keleticum Balf.f. & Forrest
Rhododendron keleticum Balf.f. & Forrest 'Robert Seleger'
Rhododendron keysii
Rhododendron kiusianum Makino
Rhododendron kiusianum Makino 'Flamme'
Rhododendron kiusianum Makino 'Multiflora'
Rhododendron kongboense Kingdon Ward
Rhododendron kosterianum C.K.Schneid.
Rhododendron kosterianum-Hybride
Rhododendron kotschyi Simonkov.
Rhododendron kurume
Rhododendron kurume 'Hatsugiri'
Rhododendron kynosumiemi
Rhododendron lacteum Franch.
Rhododendron laetum I.I.Smith
Rhododendron lancifolium Moench
Rhododendron lapponicum (L.) Wahlenb.
Rhododendron lapponicum (L.) Wahlenb. var. lapponicum (L.) Wahlenb.
Rhododendron lapponicum (L.) Wahlenb. var. parvifolium (M.F.Adams) Herder
Rhododendron latoucheae Franch.
Rhododendron ledebourii Pojark.
Rhododendron ledicanense
Rhododendron lepidostylum Balf.f. & Forrest
Rhododendron lepidostylun
Rhododendron lepidotum
Rhododendron lindleyi
Rhododendron linearifolium Siebold & Zucc.
Rhododendron linearifolium Siebold & Zucc. var. macrosepalum (Maxim.) Makino
Rhododendron litiense Balf.f. & Forrest
Rhododendron lochae F.Muell.
Rhododendron lochiae
Rhododendron lochmium Balf.f.
Rhododendron longesquamatum Schneid.
Rhododendron lukiangense Franch.
Rhododendron lutescens Franch.
Rhododendron luteum Sweet
Rhododendron luteum Sweet 'Bouquet de Fleure'
Rhododendron luteum Sweet 'Bouquet de Flore'
Rhododendron luteum Sweet 'Royal Command'
Rhododendron lyi Lév.
Rhododendron maackii
Rhododendron macabeanum Watt ex Balf.f.
Rhododendron macgregoriae
Rhododendron macrophyllum D.Don ex G.Don
Rhododendron macrosepalum Maxim.
Rhododendron macrosepalum Maxim. 'Linarifolium'
Rhododendron maculiferum Franch.
Rhododendron maddenii Hook.f.
Rhododendron maddenii Hook.f. ssp. crassum (Franch.) Cullen
Rhododendron magnificum Kingdon-Ward
Rhododendron makinoi Tagg ex Nakai
Rhododendron maximum L.
Rhododendron maximum L. 'Albinum'
Rhododendron meddianum Forrest
Rhododendron megacalyx
Rhododendron mekongense
Rhododendron mekongense var. melianthum
Rhododendron melianthum
Rhododendron melinanthum Balf.f. & Kingdon-Ward
Rhododendron metternichii Siebold & Zucc.
Rhododendron metternichii Siebold & Zucc. forma angustifolium Makino
Rhododendron metternichii Siebold & Zucc. forma pentamerum Maxim.
Rhododendron metternichii Siebold & Zucc. ssp. pentamerum
Rhododendron metternichii Siebold & Zucc. var. heptamerum Maxim.
Rhododendron metternichii Siebold & Zucc. var. hondoensis Nakai
Rhododendron micranthum Turcz.
Rhododendron microphytum Franch.
Rhododendron minus Michx.
Rhododendron minus Michx. var. minus Michx.
Rhododendron molle (Blume) G.Don
Rhododendron molle (Blume) G.Don 'Satan'
Rhododendron molle (Blume) G.Don 'Winston Churchill'
Rhododendron molle ssp. japonicum
Rhododendron molle ssp. japonicum 'Lilian Harvey'
Rhododendron molle-Hybride
Rhododendron montroseanum Davidian
Rhododendron morii Hayata
Rhododendron moupinense Franch.
Rhododendron mucronatum G.Don
Rhododendron mucronatum G.Don 'Narcissiflora'
Rhododendron mucronatum G.Don 'Van Noordt'
Rhododendron mucronatum G.Don var. ripense Wils.
Rhododendron mucronulatum Turcz.
Rhododendron mucronulatum Turcz. 'Cheti Dwarf'
Rhododendron mucronulatum Turcz. 'Cornell Pink'
Rhododendron mucronulatum Turcz. forma albiflorum
Rhododendron mucronulatum Turcz. var. ciliatum
Rhododendron multicolor Miq.
Rhododendron myiagrum
Rhododendron myrtifolium Schott & Kotschy
Rhododendron myrtilloides Balf.f. & Kingdon-Ward
Rhododendron nakaharai Hayata
Rhododendron neriiflorum Franch.
Rhododendron nigropunctatum Franch.
Rhododendron nilagiricum Zenker
Rhododendron niphargum Balf.f. & Kingdon-Ward
Rhododendron nipponicum Matsum.
Rhododendron nitidulum Rehder & E.H.Wilson
Rhododendron nitidulum Rehder & E.H.Wilson var. omeiense M.N.Philipson & W.R.Philipson
Rhododendron nivale Hook.f.
Rhododendron nivale Hook.f. ssp. boreale Philipson & Philipson
Rhododendron niveum Hook.f.
Rhododendron nudiflorum Torr.
Rhododendron nudiflorum Torr. 'Aureum'
Rhododendron nudipes Nakai
Rhododendron nuttallii Booth ex Nutt.
Rhododendron oblongifolium (Small) Millais
Rhododendron obtusum (Lindl.) Planch.
Rhododendron obtusum (Lindl.) Planch. 'Hinodegiri'
Rhododendron obtusum (Lindl.) Planch. 'Ledikanensis'
Rhododendron obtusum (Lindl.) Planch. 'Orange Beauty'
Rhododendron obtusum (Lindl.) Planch. var. japonicum Wils.
Rhododendron obtusum var. amoenum
Rhododendron obtusum var. kaempferi
Rhododendron occidentale A.Gray
Rhododendron occidentale A.Gray var. occidentale (Torr. & Gray ex Torr.) Gray
Rhododendron occidentale A.Gray var. paludosum Jeps.
Rhododendron occidentale A.Gray var. sonomense (Greene) Rehder
Rhododendron oldhamii Maximowicz
Rhododendron oleifolium Franch.
Rhododendron orbiculare DC.
Rhododendron oreodoxa Franch.
Rhododendron oreothrephes
Rhododendron oreotrephes W.W.Sm.
Rhododendron oreotrephes W.W.Sm. forma timeteum
Rhododendron orthocladum Balf.f. & Forrest
Rhododendron ovatum Maxim.
Rhododendron pachytrichum Franch.
Rhododendron paludosum Hutch. & Kingdon-Ward
Rhododendron paradoxum Balf.f. ex Tagg
Rhododendron parmulatum Cowan
Rhododendron parvifolium Adams
Rhododendron pennsylvanicum Rehder
Rhododendron pentaphyllum Maxim.
Rhododendron pentaphyllum Maxim. var. nikoense
Rhododendron periclymenoides (Michx.) Shinners
Rhododendron phaeochrysum Balf.f. & W.W.Sm.
Rhododendron phaeochrysum Balf.f. & W.W.Sm. var. agglutinatum Balf.f. & W.W.Sm.
Rhododendron phaeochrysum Balf.f. & W.W.Sm. var. levistratum (Balf.f. & Forrest) Chamberl.
Rhododendron phoenicodon Balf. f. & Farrer
Rhododendron planetum Balf. f.
Rhododendron pleistanthum Balf.f. ex Hutch.
Rhododendron pogonostylum
Rhododendron polycladum Franch.
Rhododendron polycladum Franch. 'Scintillans'
Rhododendron polylepis Franch.
Rhododendron polylepsis
Rhododendron ponticum L.
Rhododendron ponticum L. 'Album'
Rhododendron ponticum L. 'Cheiranthifolium'
Rhododendron ponticum L. 'Imbricatum'
Rhododendron ponticum L. 'Lancifolium'
Rhododendron ponticum L. 'Roseum'
Rhododendron ponticum L. 'Variegatum'
Rhododendron ponticum L. ssp. baeticum (Boiss. & Reut.) Hand.-Mazz.
Rhododendron ponticum L. ssp. ponticum
Rhododendron ponticum-Hybride
Rhododendron ponticum-Hybride 'Coccinea Speciosa'
Rhododendron ponticum-Hybride 'Fauna'
Rhododendron ponticum-Hybride 'Gloria mundi'
Rhododendron ponticum-Hybride 'Sang de Gentbrugge'
Rhododendron ponticum-Hybride 'Unique'
Rhododendron poukhanense H.Lev.
Rhododendron praecox Carrière
Rhododendron praevernum Hutch.
Rhododendron primulaeflorum Bureau et Franch.
Rhododendron prinophyllum (Small) Millais
Rhododendron pruniflorum Hutch.
Rhododendron prunifolium (Small) Millais
Rhododendron przewalskii Maxim.
Rhododendron pseudochrysanthum Hayata
Rhododendron pseudoyanthinum
Rhododendron pubescens Balf.f. & Forrest
Rhododendron pulchrum Sweet
Rhododendron pulchrum Sweet var. speciosum
Rhododendron pumilum Hook.f.
Rhododendron puralbum
Rhododendron purdomii Rhed. & E.H.Wilson
Rhododendron purpurellum
Rhododendron quinquefolium Biss. & Moore
Rhododendron racemosum Franch.
Rhododendron racemosum Franch. 'Rock Rose'
Rhododendron radicans Balf.f. & Forrest
Rhododendron radicans x Rh.calostrotum
Rhododendron radistratum
Rhododendron rarum Schltr.
Rhododendron ravum Balf.f. & W.W.Sm.
Rhododendron repens 'Bad Eilsen'
Rhododendron repens Balf.f. & Forrest
Rhododendron repens Balf.f. & Forrest 'Abendglut'
Rhododendron repens Balf.f. & Forrest 'Antje'
Rhododendron repens Balf.f. & Forrest 'Baden-Baden'
Rhododendron repens Balf.f. & Forrest 'Dr.Ernst Schäle'
Rhododendron repens Balf.f. & Forrest 'Elisabeth Hobbie'
Rhododendron repens Balf.f. & Forrest 'Frühlingszauber'
Rhododendron repens Balf.f. & Forrest 'Gräfin Kirchbach'
Rhododendron repens Balf.f. & Forrest 'Juwel'
Rhododendron repens Balf.f. & Forrest 'Mannheim'
Rhododendron repens Balf.f. & Forrest 'Mildred Scheel'
Rhododendron repens Balf.f. & Forrest 'Red Carpet'
Rhododendron repens Balf.f. & Forrest 'Satin'
Rhododendron repens Balf.f. & Forrest 'Scarlet Wonder'
Rhododendron reticulatum D.Don ex G.Don
Rhododendron reticulatum D.Don ex G.Don forma album
Rhododendron reticulatum D.Don ex G.Don forma pentandrum Wils.
Rhododendron rex H.Lév.
Rhododendron rex H.Lév. ssp. fictolacteum
Rhododendron rhabdotum Balf. f.
Rhododendron rhombicum Miq.
Rhododendron rigidum Franch.
Rhododendron ripense Makino
Rhododendron roseum (Loisel.) Rehder
Rhododendron roxieanum Forrest
Rhododendron roxieanum Forrest var. oreonastes
Rhododendron roxieanum var. cucullatum (Hand.-Mazz.) D.F. Chamb.
Rhododendron rubiginosum Franch.
Rhododendron rubiginosum Franch. var. rubiginosum
Rhododendron rufum Batalin
Rhododendron rupicola W.W.Sm.
Rhododendron rupicola W.W.Sm. var. chryseum (Balf.f. & Kingdon-Ward) Philipson & Philipson
Rhododendron russatum Balf.f. & Forrest
Rhododendron russatum Balf.f. & Forrest 'Azurwolke'
Rhododendron russatum Balf.f. & Forrest 'Gletschernacht'
Rhododendron saluenense Franch.
Rhododendron saluenense Franch. 'Lavendula'
Rhododendron saluense
Rhododendron saluense 'Prof.Hu'
Rhododendron sanctum Nakai
Rhododendron sanguineum Franch.
Rhododendron sanguineum Franch. ssp. didymum (Balf.f. & Forrest) Cowan
Rhododendron sanguineum Franch. ssp. haemaleum (Balf.f. & Forrest) Cowan
Rhododendron sanguineum Franch. ssp. sanguineum
Rhododendron sargentianum Rehder & E.H.Wilson
Rhododendron scabrifolium Franch.
Rhododendron scabrifolium Franch. var. spiciferum (Franch.) Cullen
Rhododendron schlippenbachii Maxim.
Rhododendron scintillans Balf.f. & W.W.Sm.
Rhododendron scyphocalyx Balf.f. & Forrest
Rhododendron scyphocalyx Balf.f. & Forrest 'Orange Hybride'
Rhododendron searsiae Rehder & E.H.Wilson
Rhododendron semibarbatum Maxim.
Rhododendron serotinum
Rhododendron sheperdii Nutt.
Rhododendron shepherdii Nutt.
Rhododendron sichotense Pojark.
Rhododendron siderophyllum Franch.
Rhododendron simsii Planch.
Rhododendron sinense Sweet
Rhododendron sinogrande Balf.f. & W.W.Sm.
Rhododendron smirnowi Trautv. ex Regel
Rhododendron smirnowii Trautv.
Rhododendron sordidum Hutch.
Rhododendron souliei Franch.
Rhododendron speciosum (Willd.) Sweet
Rhododendron sperabile Balf f. & Farrer
Rhododendron spiciferum Franch.
Rhododendron stenopetalum (Hogg) Mabb.
Rhododendron stewartianum Diels
Rhododendron stictophyllum Balf f.
Rhododendron strigillosum
Rhododendron sulfureum Franch.
Rhododendron sutchuenense Franch.
Rhododendron sutchuenense Franch. var. geraldii Hutchins.

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