List of Rhododendron species
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This List of ''Rhododendron'' species includes species of the genus ''
Rhododendron ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are nati ...
'', which is in the plant family
Ericaceae The Ericaceae are a family of flowering plants, commonly known as the heath or heather family, found most commonly in acidic and infertile growing conditions. The family is large, with c.4250 known species spread across 124 genera, making it th ...
. Depending on the source, there are anywhere from 800 to over 1,100 wild species. The vast majority of ''Rhododendron'' species are native to the eastern Himalaya and southeast Tibet, along with the islands of Java, Sumatra, Borneo, New Guinea, and the Philippines. The rest are broadly spread throughout the northern hemisphere in relatively small isolated populations, including Japan, northwestern North America, the Appalachian, and the Caucasus Mountains. ''Rhododendron'' has eight traditionally accepted
subgenera In biology, a subgenus (plural: subgenera) is a taxonomic rank directly below genus. In the International Code of Zoological Nomenclature, a subgeneric name can be used independently or included in a species name, in parentheses, placed between ...
based on morphology, still the consensus taxonomy used by most authorities: '' Azaleastrum''; '' Candidastrum''; '' Hymenanthes''; '' Mumeazalea''; '' Pentanthera''; ''
Rhododendron ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are nati ...
''; '' Therorhodion''; '' Tsutsusi''. ''Hymenanthes'', with approximately 225 species, and subgenus ''Rhododendron'', with approx. 400 species, comprise what gardeners typically describe as "Rhododendrons." Two subgenera are generally known to gardeners as "Azaleas", and include many fewer true species: ''Pentanthera'', which comprises the deciduous azaleas, and ''Tsutsusi'', which includes evergreen azaleas. Modern
cladistic Cladistics (; ) is an approach to biological classification in which organisms are categorized in groups ("clades") based on hypotheses of most recent common ancestry. The evidence for hypothesized relationships is typically shared derived char ...
analysis, based on nuclear genetics, proposes changes in the classification of species within subgenera. These proposals are based on at least three different studies, with no changes proposed within subgenus ''Rhododendron'' and its sections. The major proposed changes are: to make section ''Choniastrum'' (originally in subgenus ''Azaleastrum'') a separate ''Choniastrum'' subgenus; to combine sections ''Ponticum'', ''Pentanthera'', and the species ''Rhododendron canadense'' in subgenus ''Hymenanthes''; subgenus ''Azaleastrum'' to include the former subgenera ''Tsutsusi'', ''Mumeazalea'', ''Candidastrum'', and ''Menziesa'', along with former sections ''Viscidula'', ''Azaleastrum'', ''Sciadorhodion'', and the species ''Rhododendron vaseyi''.


A

*'' Rhododendron aberconwayi'' Cowan *'' Rhododendron adamsii'' Rehder *'' Rhododendron adenanthum'' M.Y. He *'' Rhododendron adenogynum'' Diels *'' Rhododendron adenopodum'' Franch. *'' Rhododendron adenosum'' Davidian *'' Rhododendron aganniphum'' Balf. f. & Kingdon-Ward *'' Rhododendron agastum'' Balf. f. & W.W. Sm. *'' Rhododendron albertsenianum'' Forrest *'' Rhododendron albrechtii'' *'' Rhododendron album'' Blume *'' Rhododendron alutaceum'' Balf. f. & W.W. Sm. *'' Rhododendron amandum'' Cowan *'' Rhododendron ambiguum'' Hemsl. *'' Rhododendron amesiae'' Rehder & E.H. Wilson *'' Rhododendron amundsenianum'' Hand.-Mazz. *'' Rhododendron annae'' Franch. *''
Rhododendron anthopogon ''Rhododendron anthopogon'', the dwarf rhododendron, is a species of flowering plant in the family Ericaceae The Ericaceae are a family of flowering plants, commonly known as the heath or heather family, found most commonly in acidic and inf ...
'' D. Don *'' Rhododendron anthopogonoides'' Maxim. *'' Rhododendron anthosphaerum'' Diels *'' Rhododendron aperantum'' Balf. f. & Kingdon-Ward *'' Rhododendron apricum'' P.C. Tam *'' Rhododendron araiophyllum'' Balf. f. & W.W. Sm. *'' Rhododendron arborescens'' (Pursh) Torr. (Sweet Azalea) *''
Rhododendron arboreum ''Rhododendron arboreum'', the tree rhododendron, is an evergreen shrub or small tree with a showy display of bright red flowers. It is found in Bhutan, China, India, Myanmar, Nepal, Sri Lanka, Pakistan and Thailand. It is the national flower of ...
'' Sm. (Tree Rhododendron) *'' Rhododendron argipeplum'' Balf. f. & R.E. Cooper *'' Rhododendron argyrophyllum'' Franch. *'' Rhododendron arizelum'' Balf. f. & Forrest *'' Rhododendron asperulum'' Hutch. & Kingdon-Ward *'' Rhododendron asterochnoum'' Diels *'' Rhododendron atlanticum'' (Ashe) Rehder (Dwarf Azalea) *'' Rhododendron atropunicum'' H.P. Yang *'' Rhododendron atrovirens'' Franch. *'' Rhododendron augustinii'' Hemsl. *'' Rhododendron aureum'' Georgi *'' Rhododendron auriculatum'' Hemsl. *'' Rhododendron auritum'' Tagg *''
Rhododendron austrinum ''Rhododendron austrinum'' is a species of flowering plant in the Ericaceae, heath family known by the common names Florida flame azalea, honeysuckle azalea, Southern yellow azalea, and orange azalea. It is native to the southern United States, wh ...
'' (Small) Rehder


B

*'' Rhododendron bachii'' H. Lév. *''
Rhododendron baileyi ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are n ...
'' Balf. f. *'' Rhododendron bainbridgeanum'' Tagg & Forrest *'' Rhododendron balangense'' W.P. Fang *'' Rhododendron balfourianum'' Diels *'' Rhododendron bamaense'' Z.J. Zhao *'' Rhododendron barbatum'' Wall. ex G. Don *'' Rhododendron barkamense'' D.F. Chamb. *'' Rhododendron basilicum'' Balf. f. & W.W. Sm. * ''Rhododendron'' × ''bathyphyllum'' Balf. f. & Forrest *'' Rhododendron beanianum'' Cowan *'' Rhododendron beesianum'' Diels *'' Rhododendron bellissimum'' D.F. Chamb. *''
Rhododendron benhallii ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are n ...
'' Craven, nom. nov. *'' Rhododendron beyerinckianum'' Koord. *'' Rhododendron bijiangense'' T.L. Ming *'' Rhododendron bivelatum'' Balf. f. *'' Rhododendron bonvalotii'' Bureau & Franch. *'' Rhododendron boothii'' Nutt. *'' Rhododendron brachyanthum'' Franch. *'' Rhododendron brachypodum'' W.P. Fang & P.S. Liu *''
Rhododendron bracteatum ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are nati ...
'' Rehder & E.H. Wilson *'' Rhododendron brevicaudatum'' R.C. Fang & S.S. Chang *'' Rhododendron brevinerve'' Chun & W.P. Fang *'' Rhododendron breviperulatum'' Hayata *'' Rhododendron brevipetiolatum'' M.Y. Fang *'' Rhododendron bulu'' Hutch. *'' Rhododendron bureavii'' Franch. *'' Rhododendron buxifolium'' Low ex Hook.f.


C

*'' Rhododendron caesium'' Hutch. *'' Rhododendron calendulaceum'' (Michx.) Torr. (Flame Azalea) *'' Rhododendron callimorphum'' Balf. f. & W.W. Sm. *'' Rhododendron calophytum'' Franch. *'' Rhododendron calostrotum'' Balf. f. & Kingdon-Ward *'' Rhododendron calvescens'' Balf. f. & Forrest *'' Rhododendron camelliiflorum'' Hook. f. *''
Rhododendron campanulatum ''Rhododendron campanulatum'', the bell-flowered rhododendron or bell rhododendron, is a species of flowering plant in the family Ericaceae, native to the Himalayas and Tibet. It is the state flower of Himachal Pradesh Himachal Pradesh (; ; ...
'' D. Don *''
Rhododendron campylocarpum ''Rhododendron campylocarpum'' (弯果杜鹃) is a rhododendron species native to eastern Nepal, Sikkim, Bhutan, Arunachal Pradesh, southeastern Tibet, and southwestern China, where it grows at altitudes of 3000–4000 meters. It is a shrub ...
'' Hook. f. *'' Rhododendron campylogynum'' Franch. *'' Rhododendron canescens'' (Michx.) Sweet *''
Rhododendron canadense ''Rhododendron canadense'', the rhodora or Canada rosebay, is a deciduous flowering shrub that is native to northeastern North America. Classification Today's botanists consider the rhodora to be a distant relative of the other North Americ ...
'' (L.) Britton, Sterns & Poggenb. (Rhodora) *'' Rhododendron capitatum'' Maxim. *''
Rhododendron carolinianum ''Rhododendron minus'' var. ''minus'', the Carolina azalea or Carolina rhododendron, is a rhododendron species native to the mountains of North Carolina, South Carolina, Tennessee, and Northeast Georgia. It is commonly known as ''Rhododendron c ...
'' Rehd. *'' Rhododendron catacosmum'' Balf. f. ex Tagg *'' Rhododendron catawbiense'' Michx. (Catawba Rhododendron) *''
Rhododendron caucasicum ''Rhododendron caucasicum'', the Caucasian rhododendron or the Georgian snow rose, is a species of flowering plant in the genus ''Rhododendron'' native to the Transcaucasus and Anatolia. Its hybrid cultivar 'Christmas Cheer' has gained the Royal ...
'' Pall. *'' Rhododendron cavaleriei'' H. Lév. *'' Rhododendron cephalanthum'' Franch. *'' Rhododendron cerasinum'' Tagg *'' Rhododendron chamaethomsonii'' (Tagg) Cowan & Davidian *'' Rhododendron chamaezelum'' Balf. f. & Forrest *'' Rhododendron chamberlainii'' Craven, nom. nov. *'' Rhododendron championiae'' Hook. *'' Rhododendron changii'' (W.P. Fang) W.P. Fang *'' Rhododendron chapmanii'' (Alph. Wood) Gandhi & Zarucchi (Chapman's Rhododendron) *''
Rhododendron chaoanense ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are n ...
'' T.C. Wu & P.C. Tam *'' Rhododendron charitopes'' Balf. f. & Farrer *'' Rhododendron chihsinianum'' Chun & W.P. Fang *''
Rhododendron chilanshanense ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are n ...
'' Kurashige *'' Rhododendron chionanthum'' Tagg & Forrest *'' Rhododendron chrysocalyx'' H. Lév. & Vaniot *'' Rhododendron chrysodoron'' Tagg ex Hutch. *'' Rhododendron chunienii'' Chun & W.P. Fang *'' Rhododendron chunii'' W.P. Fang *'' Rhododendron ciliatum'' Hook. f. *'' Rhododendron ciliicalyx'' Franch. *'' Rhododendron ciliipes'' Hutch. *''
Rhododendron cinnabarinum ''Rhododendron cinnabarinum'' (朱砂杜鹃) is a rhododendron species native to eastern Nepal, Bhutan, Sikkim, southeastern Tibet, and southwest China, where it grows at altitudes of . It is a straggling evergreen shrub that grows to in he ...
'' Hook. f. *'' Rhododendron circinnatum'' Cowan & Kingdon-Ward *'' Rhododendron citriniflorum'' Balf. f. & Forrest *'' Rhododendron clementinae'' Forrest *'' Rhododendron codonanthum'' Balf. f. & Forrest *'' Rhododendron coelicum'' Balf. f. & Farrer *'' Rhododendron coeloneurum'' Diels *'' Rhododendron colemanii'' R.F. Mill *'' Rhododendron columbianum'' (Piper) Harmaja *'' Rhododendron comisteum'' Balf. f. & Forrest *'' Rhododendron complexum'' Balf. f. & W.W. Sm. *'' Rhododendron concinnum'' Hemsl. *'' Rhododendron coriaceum'' Franch. *'' Rhododendron coryanum'' Tagg & Forrest *'' Rhododendron crassifolium'' Stapf *'' Rhododendron crassimedium'' P.C. Tam *'' Rhododendron crassistylum'' M.Y. He *'' Rhododendron cretaceum'' P.C. Tam *'' Rhododendron crinigerum'' Franch. *'' Rhododendron cuneatum'' W.W. Sm. *'' Rhododendron cyanocarpum'' (Franch.) Franch. ex W.W. Sm.


D

*'' Rhododendron dachengense'' G.Z. Li *'' Rhododendron dalhousieae'' Hook. f. *''
Rhododendron danbaense ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the Ericaceae, heath family (Ericaceae). They can be either evergreen or deciduous. Most specie ...
'' L.C. Hu *'' Rhododendron dasycladoides'' Hand.-Mazz. *'' Rhododendron dasypetalum'' Balf. f. & Forrest *'' Rhododendron datiandingense'' Z.J. Feng *'' Rhododendron dauricum'' L. *'' Rhododendron davidii'' Franch. *''
Rhododendron davidsonianum ''Rhododendron davidsonianum'', the concave-leaf rhododendron, is a species of flowering plant in the heath family Ericaceae that is native to the forests of Sichuan, China, where it lives at altitudes of . Growing to tall and broad, it is an ...
'' Rehder & E.H. Wilson *'' Rhododendron dawuense'' H.P. Yang *'' Rhododendron dayaoshanense'' L.M. Gao & D.Z. Li *'' Rhododendron dayiense'' M.Y. He *'' Rhododendron declivatum'' Ching & H.P. Yang *''
Rhododendron decorum ''Rhododendron decorum'', the great white rhododendron () is a species of flowering plant in the heath family Ericaceae. It is an evergreen shrub native to high forested regions of northern Myanmar and Guizhou, Sichuan, Xizang, and Yunn ...
'' Franch. *'' Rhododendron degronianum'' Carrière *'' Rhododendron dekatanum'' Cowan *'' Rhododendron delavayi'' Franch. *'' Rhododendron dendricola'' Hutch. *'' Rhododendron dendrocharis'' Franch. *'' Rhododendron densifolium'' K.M. Feng *'' Rhododendron denudatum'' H. Lév. *'' Rhododendron detersile'' Franch. * ''Rhododendron'' × ''detonsum'' Balf. f. & Forrest *'' Rhododendron dichroanthum'' Diels *'' Rhododendron dignabile'' Cowan *'' Rhododendron dimitrum'' Balf. f. & Forrest * ''Rhododendron'' × ''diphrocalyx'' Balf. f. *'' Rhododendron discolor'' Franch. *'' Rhododendron diversipilosum'' (Nakai) Harmaja *'' Rhododendron duclouxii'' H. Lév. *'' Rhododendron dumicola'' Tagg & Forrest


E

*'' Rhododendron ebianense'' M.Y. Fang *'' Rhododendron eclecteum'' Balf. f. & Forrest *'' Rhododendron edgarianum'' Rehder & E.H. Wilson *'' Rhododendron edgeworthii'' Hook. f. *'' Rhododendron elegantulum'' Tagg & Forrest *'' Rhododendron emarginatum'' Hemsl. & E.H. Wilson *'' Rhododendron erastum'' Balf. f. & Forrest *'' Rhododendron ericoides'' Low ex Hook.f. *'' Rhododendron erosum'' Cowan * ''Rhododendron'' × ''erythrocalyx'' Balf. f. & Forrest *'' Rhododendron esetulosum'' Balf. f. & Forrest *'' Rhododendron euchroum'' Balf. f. & Kingdon-Ward *''
Rhododendron eudoxum ''Rhododendron eudoxum'' (华丽杜鹃) is a species of flowering plant in the Ericaceae family. It is native to the bamboo forests of southeast Xizang and northwest Yunnan, China, where it grows at altitudes of 3300–4300 meters. It is a dwarf ...
'' Balf. f. & Forrest *''
Rhododendron eurysiphon ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the Ericaceae, heath family (Ericaceae). They can be either evergreen or deciduous. Most specie ...
'' Tagg & Forrest *'' Rhododendron exasperatum'' Tagg *'' Rhododendron excellens'' Hemsl. & E.H. Wilson


F

*'' Rhododendron faberi'' Hemsl. *'' Rhododendron facetum'' Balf. f. & Kingdon-Ward *'' Rhododendron faithiae'' Chun *''
Rhododendron falconeri ''Rhododendron falconeri'', the falconer rhododendron, is a species of flowering plant in the family Ericaceae, native to the eastern Himalayas. Description It is a tree, and sometimes the dominant canopy tree, that typically grows to 12–15 me ...
'' Hook.f. *'' Rhododendron fangchengense'' P.C. Tam *'' Rhododendron farinosum'' H. Lév. *'' Rhododendron farrerae'' Sweet *''
Rhododendron fastigiatum ''Rhododendron fastigiatum'' is a dwarf lepidote rhododendron species with purple flowers native to Yunnan, China. Cultivars A cultivar is a type of cultivated plant that people have selected for desired traits and when propagated retain ...
'' Franch. *'' Rhododendron faucium'' D.F. Chamb. *'' Rhododendron fauriei'' Franch. *'' Rhododendron feddei'' H. Lév. *''
Rhododendron ferrugineum ''Rhododendron ferrugineum'', the alpenrose, snow-rose, or rusty-leaved alpenrose is an evergreen shrub that grows just above the tree line in the Alps, Pyrenees, Jura and northern Apennines, on acid soils. It is the type species for the genus ' ...
'' L. (Alpenrose) * ''Rhododendron'' × ''fittianum'' Balf. f. *'' Rhododendron flammeum'' (Michx.) Sarg. *'' Rhododendron flavantherum'' Hutch. & Kingdon-Ward *'' Rhododendron flavidum'' Franch. *''
Rhododendron flavoflorum ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the Ericaceae, heath family (Ericaceae). They can be either evergreen or deciduous. Most specie ...
'' T.L. Ming *'' Rhododendron fletcherianum'' Davidian *'' Rhododendron floccigerum'' Franch. *'' Rhododendron floribundum'' Franch. *'' Rhododendron florulentum'' P.C. Tam *'' Rhododendron flosculum'' W.P. Fang & G.Z. Li *'' Rhododendron flumineum'' W.P. Fang & M.Y. He *'' Rhododendron formosanum'' Hemsl. *''
Rhododendron forrestii ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are n ...
'' Balf. f. ex Diels *'' Rhododendron fortunei'' Lindl. *'' Rhododendron fragariiflorum'' Kingdon-Ward *''
Rhododendron fuchsiifolium ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the Ericaceae, heath family (Ericaceae). They can be either evergreen or deciduous. Most specie ...
'' H. Lév. *''
Rhododendron fulgens ''Rhododendron fulgens'' (猩红杜鹃) is a rhododendron species native to Bhutan, northeast India, Nepal, Sikkim, and southern Xizang in China, where it grows at altitudes of 3700–4500 meters. It is a shrub that grows to 1.5–4 m in height, wi ...
'' Hook. f. * ''Rhododendron'' × ''fulvastrum'' Balf. f. & Forrest *'' Rhododendron fulvum'' Balf. f. & W.W. Sm. *'' Rhododendron fuscipilum'' M.Y. He *'' Rhododendron fuyuanense'' Zeng H. Yang


G

*'' Rhododendron galactinum'' Balf. f. ex Tagg *'' Rhododendron gannanense'' Z.C. Feng & X.G. Sun *'' Rhododendron gemmiferum'' M.N. Philipson & Philipson *'' Rhododendron genestierianum'' Forrest *'' Rhododendron glanduliferum'' Franch. *'' Rhododendron glaucophyllum'' Rehder *'' Rhododendron glischrum'' Balf. f. & W.W. Sm. *'' Rhododendron gologense'' C.J. Xu & Z.J. Zhao *''
Rhododendron gonggashanense ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are n ...
'' W.K. Hu *'' Rhododendron gongshanense'' T.L. Ming *'' Rhododendron goodenoughii'' *''
Rhododendron goyozanense ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are n ...
'' (M.Kikuchi) Craven *'' Rhododendron gracilentum'' F.Muell. *'' Rhododendron grande'' Wight *'' Rhododendron griersonianum'' Balf. f. & Forrest *'' Rhododendron griffithianum'' Wight *''
Rhododendron groenlandicum ''Rhododendron groenlandicum'' (bog Labrador tea, muskeg tea, swamp tea, or in northern Canada, Hudson's Bay tea; formerly ''Ledum groenlandicum'' or ''Ledum latifolium'') is a flowering shrub with white flowers and evergreen leaves that is used ...
'' (Oeder) Kron & Judd (Bog Labrador tea) *'' Rhododendron guangnanense'' R.C. Fang *'' Rhododendron guihainianum'' G.Z. Li *'' Rhododendron guizhongense'' G.Z. Li *'' Rhododendron guizhouense'' M.Y. Fang


H

*'' Rhododendron habrotrichum'' Balf. f. & W.W. Sm. *'' Rhododendron haematodes'' Franch. *'' Rhododendron hainanense'' Merr. *'' Rhododendron hanceanum'' Hemsl. *'' Rhododendron hancockii'' Hemsl. *'' Rhododendron haofui'' Chun & W.P. Fang *'' Rhododendron heizhugouense'' M.Y. He & L.C. Hu *'' Rhododendron hejiangense'' M.Y. He *'' Rhododendron heliolepis'' Franch. * ''Rhododendron'' × ''hemigymnum'' (Tagg & Forrest) D.F. Chamb. *'' Rhododendron hemitrichotum'' Balf. f. & Forrest *'' Rhododendron hemsleyanum'' E.H. Wilson *'' Rhododendron henanense'' W.P. Fang *''
Rhododendron henryi ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are n ...
'' Hance *'' Rhododendron heteroclitum'' H.P. Yang * ''Rhododendron'' × ''hillieri'' Davidian *'' Rhododendron hippophaeoides'' Balf. f. & W.W. Sm. *'' Rhododendron hirsutipetiolatum'' A.L. Chang & R.C. Fang *''
Rhododendron hirsutum ''Rhododendron hirsutum'', commonly known as the hairy alpenrose is one of the species of ''Rhododendron'' native to the mountains of Europe. It occurs widely in the Alps except for the southwestern region (approximately south and west of the Ma ...
'' L. (hairy alpenrose) *'' Rhododendron hirtipes'' Tagg *''
Rhododendron hodgsonii ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are nati ...
'' Hook. f. *'' Rhododendron hoi'' W.P. Fang *''
Rhododendron hongkongense ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are n ...
'' Hutch. *'' Rhododendron hookeri'' Nutt. *'' Rhododendron huadingense'' B.Y. Ding & Y.Y. Fang *'' Rhododendron huanum'' W.P. Fang *'' Rhododendron huguangense'' P.C. Tam *'' Rhododendron huidongense'' T.L. Ming *'' Rhododendron hunanense'' Chun ex P.C. Tam *'' Rhododendron hunnewellianum'' Rehder & E.H. Wilson *'' Rhododendron hutchinsonianum'' W.P. Fang *'' Rhododendron hylaeum'' Balf. f. & Farrer *'' Rhododendron hypenanthum'' Balf. f. *'' Rhododendron hyperythrum'' Hayata *'' Rhododendron hypoblematosum'' P.C. Tam *'' Rhododendron hypoglaucum'' Hemsl. *'' Rhododendron hypoleucum'' (Kom.) Harmaja


I

*'' Rhododendron igneum'' Cowan *'' Rhododendron impeditum'' Balf. f. & W.W. Sm. *''
Rhododendron indicum ''Rhododendron indicum'' is an Azalea ''Rhododendron'' species native to Japan (S & W Honshu, Shikoku, Kyushu, Yakushima). Taxonomy It is the type species for the ''Tsutsusi'' section and subsection, and was the original ''Tsutsusi'' described by ...
'' ( L.) Sweet *'' Rhododendron inopinum'' Balf. f. *'' Rhododendron insigne'' Hemsl. & E.H. Wilson *'' Rhododendron intricatum'' Franch. *'' Rhododendron invictum'' Balf. f. & Farrer *'' Rhododendron irroratum'' Franch.


J

*'' Rhododendron jasminiflorum'' Hook. *'' Rhododendron jasminoides'' M.Y. He *'' Rhododendron javanicum'' (Blume) Benn. *'' Rhododendron jenestierianum'' Forrest *'' Rhododendron jinchangense'' Zeng H. Yang *'' Rhododendron jingangshanicum'' P.C. Tam *'' Rhododendron jinpingense'' W.P. Fang & M.Y. He *'' Rhododendron jinxiuense'' W.P. Fang & M.Y. He *'' Rhododendron joniense'' Ching & H.P. Yang


K

*''
Rhododendron kaempferi ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the Ericaceae, heath family (Ericaceae). They can be either evergreen or deciduous. Most specie ...
'' Planch. *'' Rhododendron kanehirae'' E.H.Wilson *'' Rhododendron kasoense'' Hutch. & Kingdon-Ward *''
Rhododendron katsumatae ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are n ...
'' (M.Tash. & H.Hatta) Craven *'' Rhododendron kawakamii'' Hayata *'' Rhododendron keiskei'' Miq. *'' Rhododendron keleticum'' Balf. f. & Forrest *'' Rhododendron kendrickii'' Nutt. *'' Rhododendron kesangiae'' D.G. Long & Rushforth *'' Rhododendron keysii'' Nutt. *'' Rhododendron kiangsiense'' W.P. Fang *'' Rhododendron kiusianum'' Makino *''
Rhododendron kongboense ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the Ericaceae, heath family (Ericaceae). They can be either evergreen or deciduous. Most specie ...
'' Hutch. *'' Rhododendron konori''
Becc. Odoardo Beccari (16 November 1843 – 25 October 1920) was an Italian botanist famous for his discoveries in Indonesia, particularly New Guinea, and Australia. He has been called the greatest botanist to ever study Malesia. His author abbrevia ...
*''
Rhododendron kroniae ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are nat ...
'' Craven *'' Rhododendron kwangsiense'' Hu ex P.C. Tam *'' Rhododendron kwangtungense'' Merr. & Chun *'' Rhododendron kyawii'' Lace & W.W. Sm. * ''Rhododendron'' × ''kamatae'' (Mochizuki) Craven


L

*'' Rhododendron labolengense'' Ching & H.P. Yang *'' Rhododendron lacteum'' Franch. *'' Rhododendron laetum'' J. J. Sm. *'' Rhododendron lanatoides'' D.F. Chamb. *''
Rhododendron lanatum ''Rhododendron lanatum'' (syn. ''Rhododendron flinckii''), the woolly rhododendron, is a species of flowering plant in the family Ericaceae The Ericaceae are a family of flowering plants, commonly known as the heath or heather family, found ...
'' Hook. f. *'' Rhododendron lanigerum'' Tagg *'' Rhododendron laojunshanense'' M.Y. Fang *'' Rhododendron lapponicum'' (L.) Wahlenb. *'' Rhododendron lasiostylum'' Hayata *'' Rhododendron lateriflorum'' R.C. Fang & A.L. Chang *'' Rhododendron latoucheae'' Franch. *'' Rhododendron laudandum'' Cowan *''
Rhododendron leiboense ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are n ...
'' Z.J. Zhao *'' Rhododendron leishanicum'' W.P. Fang & S.S. Chang ex D.F. Chamb. *'' Rhododendron lepidostylum'' Balf. f. & Forrest *'' Rhododendron lepidotum'' Wall. ex G. Don *'' Rhododendron leptocarpum'' Nutt. *'' Rhododendron leptocladon'' Dop *'' Rhododendron leptopeplum'' Balf. f. & Forrest *'' Rhododendron leptothrium'' Balf. f. & Forrest *'' Rhododendron leucaspis'' Tagg *'' Rhododendron levinei'' Merr. *'' Rhododendron liaoxigense'' S.L. Tung & Z. Lu *''
Rhododendron liboense ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the Ericaceae, heath family (Ericaceae). They can be either evergreen or deciduous. Most specie ...
'' Z.R. Chen & K.M. Lan *'' Rhododendron liliiflorum'' H. Lév. *'' Rhododendron lindleyi'' T. Moore *'' Rhododendron linearilobum'' R.C. Fang & A.L. Chang *'' Rhododendron linguiense'' G.Z. Li *'' Rhododendron litchiifolium'' T.C. Wu & P.C. Tam *'' Rhododendron lochiae'' F. Muell. (Australian Rhododendron) *'' Rhododendron lochmium'' Balf. f. *'' Rhododendron longesquamatum'' C.K. Schneid. *'' Rhododendron longicalyx'' M.Y. Fang *'' Rhododendron longifalcatum'' P.C. Tam *'' Rhododendron longilobum'' L.M. Gao & D.Z. Li *'' Rhododendron longiperulatum'' Hayata *'' Rhododendron longipes'' Rehder & E.H. Wilson *'' Rhododendron longistylum'' Rehder & A. Wilson *'' Rhododendron loniceriflorum'' P.C. Tam *'' Rhododendron loerzingii'' J.J. Smith *'' Rhododendron ludlowii'' Cowan *'' Rhododendron luhuoense'' H.P. Yang *'' Rhododendron lukiangense'' Franch. *'' Rhododendron lulangense'' L.C. Hu & Tateishi *'' Rhododendron lungchiense'' W.P. Fang *'' Rhododendron lutescens'' Franch. *'' Rhododendron luteum'' Sweet (yellow or honeysuckle azalea)


M

*'' Rhododendron macgregoriae'' F.Muell. *'' Rhododendron mackenzianum'' Forrest *'' Rhododendron maculiferum'' Franch. *'' Rhododendron macrophyllum'' D.Don ex G. Don 834(''R. californicum'' Hook.f.) (Pacific Coast Rhododendron) *'' Rhododendron maddenii'' Hook. f. *'' Rhododendron magnificum'' Kingdon-Ward *'' Rhododendron magniflorum'' W.K. Hu *''
Rhododendron maguanense ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the Ericaceae, heath family (Ericaceae). They can be either evergreen or deciduous. Most specie ...
'' K.M. Feng *'' Rhododendron mainlingense'' S.H. Huang & R.C. Fang *'' Rhododendron malipoense'' M.Y. He *'' Rhododendron mallotum'' Balf. f. & Kingdon-Ward *'' Rhododendron maoerense'' W.P. Fang & G.Z. Li *''
Rhododendron maowenense ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are n ...
'' Ching & H.P. Yang *'' Rhododendron mariae'' Hance *'' Rhododendron mariesii'' Hemsl. & E.H. Wilson *'' Rhododendron martinianum'' Balf. f. & Forrest *''
Rhododendron maximum ''Rhododendron maximum'' — its common names include great laurel, great rhododendron, rosebay rhododendron, American rhododendron and big rhododendron — is a species of ''Rhododendron'' native to the Appalachians of eastern North America, fr ...
'' L. (great or American Rhododendron) *'' Rhododendron meagaii'' Mambrasar & Hutabarat *'' Rhododendron meddianum'' Forrest *'' Rhododendron medoense'' W.P. Fang & M.Y. He *'' Rhododendron megacalyx'' Balf. f. & Kingdon-Ward *'' Rhododendron megalanthum'' M.Y. Fang *'' Rhododendron megeratum'' Balf. f. & Forrest *'' Rhododendron mekongense'' Franch. *'' Rhododendron mengtszense'' Balf. f. & W.W. Sm. *''
Rhododendron menziesii ''Rhododendron menziesii'', also classified as ''Menziesia ferruginea'', is a species of flowering plant in the heath family Ericaceae, known by several common names, including rusty menziesia, false huckleberry, fool's huckleberry and mock azale ...
'' Craven *'' Rhododendron meridionale'' P.C. Tam *'' Rhododendron mianningense'' Z.J. Zhao *'' Rhododendron micranthum'' Turcz. *'' Rhododendron microgynum'' Balf. f. & Forrest *'' Rhododendron microphyton'' Franch. *'' Rhododendron mimetes'' Tagg & Forrest *'' Rhododendron miniatum'' Cowan *'' Rhododendron minus'' Michx. *'' Rhododendron minutiflorum'' Hu *'' Rhododendron minyaense'' Philipson & M.N. Philipson *'' Rhododendron mitriforme'' P.C. Tam *'' Rhododendron miyiense'' W.K. Hu *''
Rhododendron molle ''Rhododendron molle'' (羊踯躅) is a rhododendron species native to China and Japan, where it grows at altitudes of sea level to 2500 meters. This deciduous shrub grows to in height, with leaves that are oblong to oblong- lanceolate, 5 ...
'' (Blume) G. Don *''
Rhododendron mollicomum ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the Ericaceae, heath family (Ericaceae). They can be either evergreen or deciduous. Most specie ...
'' Balf. f. & W.W. Sm. *'' Rhododendron monanthum'' Balf. f. & W.W. Sm. *'' Rhododendron montiganum'' T.L. Ming *'' Rhododendron montroseanum'' Davidian *'' Rhododendron morii'' Hayata *''
Rhododendron moulmainense ''Rhododendron moulmainense'', Westland's rhododendron, is a species of ''Rhododendron'' native to southern China ( Fujian, Guangdong, Guangxi, Guizhou, Hong Kong, Hunan, Yunnan), Myanmar, Malaysia, Thailand, and Vietnam. It is an eve ...
'' Hook. (Westland's Rhododendron) *''
Rhododendron moupinense ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the Ericaceae, heath family (Ericaceae). They can be either evergreen or deciduous. Most specie ...
'' Franch. *''
Rhododendron mucronatum ''Rhododendron mucronatum'' is a rhododendron species native to China, where it grows at altitudes of . This evergreen shrub grows to in height, with leaves that are lanceolate The following is a list of terms which are used to describe leaf ...
'' (Blume) G. Don *'' Rhododendron mucronulatum'' Turcz. *''
Rhododendron multiflorum ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are n ...
'' (Maxim.) Craven *'' Rhododendron myrsinifolium'' Ching ex W.P. Fang & M.Y. He *''
Rhododendron myrtifolium ''Rhododendron myrtifolium'' ( syn. ''Rhododendron kotschyi'') is a species of flowering plant in the family Ericaceae. This evergreen shrub is common in the high mountain ranges of Eastern Europe, particularly Bulgaria, Romania and Ukraine ...
'' Schott & Kotschy


N

*'' Rhododendron naamkwanense'' Merr. *'' Rhododendron nakaharae'' Hayata *'' Rhododendron nakotiltum'' Balf. f. & Forrest *'' Rhododendron nanjianense'' K.M. Feng & Z.H. Yang *'' Rhododendron nanpingense'' P.C. Tam *'' Rhododendron neglectum'' (Ashe) Ashe *''
Rhododendron neoglandulosum ''Rhododendron columbianum'', commonly known as western Labrador tea, swamp tea, or muskeg tea, is a shrub that is widespread in the western United States and in western Canada, reported from British Columbia, Alberta, Washington, Oregon, Idah ...
'' Harmaja formerly '' Ledum glandulosum'' (western Labrador tea, or trapper's tea) *'' Rhododendron neriiflorum'' Franch. *'' Rhododendron nigroglandulosum'' Nitz. *'' Rhododendron nitidulum'' Rehder & E.H. Wilson *'' Rhododendron nivale'' Hook. f. *''
Rhododendron niveum ''Rhododendron niveum'' () is a rhododendron species native to northeastern India (including Sikkim), Bhutan, and southern Tibet in China, where it grows at altitudes of . It is an evergreen shrub or small tree that grows to in height, with leat ...
'' Hook. f. *'' Rhododendron noriakianum'' Suzuki *'' Rhododendron nuttallii'' Booth ex Nutt. *'' Rhododendron nyingchiense'' R.C. Fang & S.H. Huang *'' Rhododendron nymphaeoides'' W.K. Hu


O

*'' Rhododendron oblancifolium'' M.Y. Fang *'' Rhododendron oblongifolium'' (Small) Millais *'' Rhododendron obtusum'' (Lindl.) Planch. *''
Rhododendron occidentale ''Rhododendron occidentale'', the western azalea or California azalea, is one of two deciduous ''Rhododendron'' species native to western North America (the other is '' Rhododendron albiflorum''). The western azalea is known to occur as far north ...
'' (Torr. & A. Gray) A. Gray *'' Rhododendron ochraceum'' Rehder & E.H. Wilson *'' Rhododendron octandrum'' M.Y. He *'' Rhododendron oldhamii'' Maxim. *'' Rhododendron oligocarpum'' W.P. Fang *''
Rhododendron orbiculare ''Rhododendron orbiculare'', the round-leaved rhododendron ( zh, s=, p=tuányè dùjuān), is a species of flowering plant in the heath family Ericaceae that is native to forests and slopes at an elevation of in northeastern Guangxi and southw ...
'' Decne. *'' Rhododendron oreodoxa'' Franch. *'' Rhododendron oreogenum'' L.C. Hu *'' Rhododendron oreotrephes'' W.W. Sm. *'' Rhododendron orthocladum'' Balf. f. & Forrest *'' Rhododendron ovatum'' (Lindl.) Planch. ex Maxim.


P

*'' Rhododendron pachyphyllum'' W.P. Fang *'' Rhododendron pachypodum'' Balf. f. & W.W. Sm. *''
Rhododendron pachysanthum ''Rhododendron pachysanthum'' ( zh, s=, p=Táiwān shāndì dùjuān), the thick-flowered rhododendron, is a species of flowering plant in the heath family Ericaceae, that is native to Taiwan. It is an evergreen shrub growing to tall and broad ...
'' Hayata *'' Rhododendron pachytrichum'' Franch. *'' Rhododendron papillatum'' Balf. f. & R.E. Cooper *'' Rhododendron paradoxum'' Balf. f. *'' Rhododendron parmulatum'' Cowan *'' Rhododendron pemakoense'' Kingdon-Ward *'' Rhododendron pendulum'' Hook. f. *'' Rhododendron pentaphyllum'' *''
Rhododendron pentandrum ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are n ...
'' (Maxim.) Craven *'' Rhododendron peregrinum'' Tagg *'' Rhododendron periclymenoides'' (Michx.) Shinners (pinxterflower) *'' Rhododendron petrocharis'' Diels *'' Rhododendron phaeochrysum'' Balf. f. & W.W. Sm. *'' Rhododendron piercei'' Davidian *''
Rhododendron pilosum ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are n ...
'' (Michx. ex Lam.) Craven *'' Rhododendron pilostylum'' W.K. Hu *'' Rhododendron pinetorum'' P.C. Tam *'' Rhododendron pingbianense'' M.Y. Fang *'' Rhododendron pingianum'' W.P. Fang *'' Rhododendron platyphyllum'' (Franch. ex Diels) Balf. f. & W.W. Sm. *'' Rhododendron platypodum'' Diels *'' Rhododendron pleistanthum'' E.H. Wilding *'' Rhododendron pocophorum'' Balf. f. ex Tagg *'' Rhododendron poilanei'' Dop *'' Rhododendron polycladum'' Franch. *'' Rhododendron polylepis'' Franch. *'' Rhododendron polyraphidoideum'' P.C. Tam *'' Rhododendron polytrichum'' W.P. Fang *'' Rhododendron pomense'' Cowan & Davidian *'' Rhododendron ponticum'' L. *'' Rhododendron populare'' Cowan *'' Rhododendron potaninii'' Batalin *'' Rhododendron praestans'' Balf. f. & W.W. Sm. *''
Rhododendron praeteritum ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are n ...
'' Hutch. *'' Rhododendron praevernum'' Hutch. *''
Rhododendron preptum ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the Ericaceae, heath family (Ericaceae). They can be either evergreen or deciduous. Most specie ...
'' Balf. f. & Forrest *'' Rhododendron primuliflorum'' Bureau & Franch. *'' Rhododendron principis'' Bureau & Franch. *'' Rhododendron prinophyllum'' (Small) Millais *'' Rhododendron pronum'' Tagg & Forrest *'' Rhododendron proteoides'' Balf. f. & W.W. Sm. *''
Rhododendron protistum ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are nati ...
'' Balf. f. & Forrest *'' Rhododendron pruniflorum'' Hutch. & Kingdon-Ward *''
Rhododendron prunifolium ''Rhododendron prunifolium'', the plumleaf azalea, is a wild azalea that grows only in a few counties along the Georgia–Alabama border in the Chattahoochee River Valley. It is considered the rarest azalea in the Eastern United States. Providence ...
'' (Small) Millais *''
Rhododendron przewalskii ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are n ...
'' Maxim. *''
Rhododendron pseudochrysanthum ''Rhododendron pseudochrysanthum'' ( zh, s=, p=Ālǐshān dùjuān, l= Alishan azalea), the false-gold-flower rhododendron, is a species of flowering plant in the heath family Ericaceae, native to Taiwan. It is a low-growing evergreen shrub gro ...
'' Hayata *'' Rhododendron pseudociliipes'' Cullen *'' Rhododendron pubescens'' Balf. f. & Forrest *'' Rhododendron pubicostatum'' T.L. Ming *'' Rhododendron pudorosum'' Cowan *'' Rhododendron pugeense'' L.C. Hu *'' Rhododendron pulchroides'' Chun & W.P. Fang *''
Rhododendron pulchrum ''Rhododendron pulchrum'' (锦绣杜鹃), also identified as ''Rhododendron'' × ''pulchrum'', is a rhododendron ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 spec ...
'' Sweet *'' Rhododendron pumilum'' Hook. f. *'' Rhododendron punctifolium'' L.C. Hu *'' Rhododendron purdomii'' Rehder & E.H. Wilson * ''Rhododendron'' × ''pyrrhoanthum'' Balf. f.


Q

*'' Rhododendron qianyangense'' M.Y. He *'' Rhododendron qinghaiense'' Ching ex W.Y. Wang *'' Rhododendron quinquefolium''


R

*''
Rhododendron racemosum ''Rhododendron racemosum'', the racemose rhododendron ( zh, s=, p=yèhuā dùjuān), is a species of flowering plant in the heath family Ericaceae, native to forest and grassland at in northwestern Guizhou, southwestern Sichuan, and Yunnan, ...
'' Franch. *'' Rhododendron radendum'' W.P. Fang *'' Rhododendron ramipilosum'' T.L. Ming *'' Rhododendron ramsdenianum'' Cowan *'' Rhododendron rarilepidotum'' J.J.Sm. *'' Rhododendron rarum'' Schltr. *'' Rhododendron recurvoides'' Tagg & Kingdon-Ward *'' Rhododendron redowskianum'' Maxim. *'' Rhododendron retusum'' (Blume) Benn. *''
Rhododendron rex ''Rhododendron rex'' (大王杜鹃), the king rhododendron, is a tree species, usually in height, in the family Ericaceae. It is found in China, India, and Myanmar, where it is threatened by habitat loss. The flowers are creamy-white, or pale ...
'' H. Lév. *'' Rhododendron rhodanthum'' M.Y. He *'' Rhododendron rhombifolium'' R.C. Fang *'' Rhododendron rhuyuenense'' Chun ex P.C. Tam *'' Rhododendron rigidum'' Franch. *'' Rhododendron riparioides'' (Cullen) Cubey *'' Rhododendron ririei'' Hemsl. & E.H. Wilson *'' Rhododendron rivulare'' Hand.-Mazz. *'' Rhododendron roseatum'' Hutch. *'' Rhododendron rothschildii'' Davidian *'' Rhododendron roxieanum'' Forrest *'' Rhododendron roxieoides'' D.F. Chamb. *'' Rhododendron rubiginosum'' Franch. *'' Rhododendron rubropilosum'' Hayata *'' Rhododendron rufescens'' Franch. *'' Rhododendron rufohirtum'' Hand.-Mazz. *'' Rhododendron rufum'' Batalin *'' Rhododendron rupicola'' W.W. Sm. *'' Rhododendron rupivalleculatum'' P.C. Tam *'' Rhododendron rushforthii'' Argent & D.F. Chamb. *'' Rhododendron russatum'' Balf. f. & Forrest


S

*'' Rhododendron saluenense'' Franch. *'' Rhododendron sanguineum'' Franch. *'' Rhododendron sargentianum'' Rehder & E.H. Wilson *'' Rhododendron saxatile'' B.Y. Ding & Y.Y. Fang *'' Rhododendron scabrifolium'' Franch. *'' Rhododendron schistocalyx'' Balf. f. & Forrest *''
Rhododendron schlippenbachii ''Rhododendron schlippenbachii'', the royal azalea, is a species of ''Rhododendron'' native to the Korean Peninsula and adjacent regions of Manchuria (Liaoning, Nei Mongol), Japan, and the Russian Far East. It is the dominant understory shrub i ...
'' Maxim. *'' Rhododendron scopulorum'' Hutch. *'' Rhododendron searsiae'' Rehder & E.H. Wilson *'' Rhododendron seinghkuense'' Kingdon-Ward *'' Rhododendron selense'' Franch. *'' Rhododendron semnoides'' Tagg & Forrest *'' Rhododendron seniavinii'' Maxim. *'' Rhododendron serotinum'' Hutch. *'' Rhododendron setiferum'' Balf. f. & Forrest *''
Rhododendron setosum ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are nati ...
'' D. Don *'' Rhododendron shanii'' W.P. Fang *''
Rhododendron sherriffii ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the Ericaceae, heath family (Ericaceae). They can be either evergreen or deciduous. Most specie ...
'' Cowan *'' Rhododendron shimenense'' Q.X. Liu & C.M. Zhang *'' Rhododendron shimianense'' W.P. Fang & P.S. Liu *'' Rhododendron shweliense'' Balf. f. & Forrest *'' Rhododendron sidereum'' Balf. f. *''Rhododendron siderophyllum'' Franch. *''Rhododendron sikangense'' W.P. Fang *''Rhododendron sikayotaizanense'' Masam. *''Rhododendron simiarum'' Hance *''Rhododendron simsii'' Planch. *''Rhododendron sinofalconeri'' Balf. f. *''Rhododendron sinogrande'' Balf. f. & W.W. Sm. *''Rhododendron sinonuttallii'' Balf. f. & Forrest *Rhododendron × sinosimulans, ''Rhododendron'' × ''sinosimulans'' D.F. Chamb. *''Rhododendron smirnowii'' Trautv. *''Rhododendron sophistarum'' Craven *''Rhododendron souliei'' Franch. *''Rhododendron spadiceum'' P.C. Tam *''Rhododendron spanotrichum'' Balf. f. & W.W. Sm. *''Rhododendron sparsifolium'' W.P. Fang *''Rhododendron sperabile'' Balf. f. & Farrer *''Rhododendron sperabiloides'' Tagg & Forrest *''Rhododendron sphaeroblastum'' Balf. f. & Forrest *''Rhododendron spiciferum'' Franch. *''Rhododendron spinuliferum'' Franch. *''Rhododendron stamineum'' Franch. *''Rhododendron stewartianum'' Diels *''Rhododendron strigillosum'' Franch. *''Rhododendron strigosum'' R.L. Liu *''Rhododendron subcerinum'' P.C. Tam *''Rhododendron subenerve'' P.C. Tam *''Rhododendron subestipitatum'' Chun ex P.C. Tam *''Rhododendron subflumineum'' P.C. Tam *''Rhododendron subansiriense'' Chamberlain *''Rhododendron subulatum'' (Nakai) Harmaja *''Rhododendron sulfureum'' Franch. *''Rhododendron sutchuenense'' Franch.


T

*''Rhododendron taggianum'' Hutch. *''Rhododendron taibaiense'' Ching & H.P. Yang *''Rhododendron taichungianum'' S.S. Ying *''Rhododendron taipaoense'' T.C. Wu & P.C. Tam *''Rhododendron taishunense'' B.Y. Ding & Y.Y. Fang *''Rhododendron taiwanalpinum'' Ohwi *''Rhododendron taliense'' Franch. *''Rhododendron tanastylum'' Balf. f. & Kingdon-Ward *''Rhododendron tapetiforme'' Balf. f. & Kingdon-Ward *''Rhododendron taronense'' Hutch. *''Rhododendron tashiroi'' Maxim. *''Rhododendron tatsienense'' Franch. *''Rhododendron telmateium'' Balf. f. & W.W. Sm. *''Rhododendron temenium'' Balf. f. & Forrest *''Rhododendron tenue'' Ching ex W.P. Fang & M.Y. He *''Rhododendron tenuifolium'' R.C. Fang & S.H. Huang *''Rhododendron tenuilaminare'' P.C. Tam *''Rhododendron tephropeplum'' Balf. f. & Forrest *''Rhododendron thayerianum'' Rehder & E.H. Wilson *''Rhododendron thomsonii'' Hook. f. *''Rhododendron thymifolium'' Maxim. *''Rhododendron tianlinense'' P.C. Tam *''Rhododendron tiantangense'' G.Z. Li *''Rhododendron tingwuense'' P.C. Tam *''Rhododendron tomentosum'' Harmaja formerly ''Ledum palustre'' (northern Labrador tea) *''Rhododendron torquescens'' D.F. Chamb. *''Rhododendron traillianum'' Forrest & W.W. Sm. *''Rhododendron trichanthum'' Rehder *''Rhododendron trichocladum'' Franch. *''Rhododendron trichogynum'' L.C. Hu *''Rhododendron trichophorum'' Balf. f. *''Rhododendron trichostomum'' Franch. *''Rhododendron triflorum'' Hook. f. *''Rhododendron trilectorum'' Cowan *''Rhododendron truncatovarium'' L.M. Gao & D.Z. Li *''Rhododendron tsaii'' W.P. Fang *''Rhododendron tsariense'' Cowan *''Rhododendron tsinlingense'' W.P. Fang ex J.Q. Fu *''Rhododendron tsoi'' Merr. *''Rhododendron tubiforme'' (Cowan & Davidian) Davidian *''Rhododendron tubulosum'' Ching ex W.Y. Wang *''Rhododendron tutcherae'' Hemsl. & E.H. Wilson


U

*''Rhododendron unciferum'' P.C. Tam *''Rhododendron uniflorum'' Hutch. & Kingdon-Ward *''Rhododendron urophyllum'' W.P. Fang *''Rhododendron uvariifolium'' Diels


V

*''Rhododendron vaccinioides'' Hook. *''Rhododendron valentinianum'' Forrest ex Hutch. *''Rhododendron vaniotii'' H. Lév. *''Rhododendron vaseyi'' A.Gray *''Rhododendron veitchianum'' Hook. *''Rhododendron vellereum'' Hutch. ex Tagg *''Rhododendron venator'' Tagg *''Rhododendron vernicosum'' Franch. *''Rhododendron verruciferum'' W.K. Hu *''Rhododendron verruculosum'' Rehder & E.H. Wilson *''Rhododendron vesiculiferum'' Tagg *''Rhododendron vialii'' Delavay & Franch. *''Rhododendron virgatum'' Hook. f. *''Rhododendron viridescens'' Hutch. *''Rhododendron viscidifolium'' Davidian *''Rhododendron viscidum'' C.Z. Guo & Z.H. Liu *''Rhododendron viscigemmatum'' P.C. Tam *''Rhododendron viscosum'' (L.) Torr.


W

*''Rhododendron wadanum'' Makino *''Rhododendron wallichii'' Hook. f. *''Rhododendron walongense'' Kingdon-Ward *''Rhododendron wardii'' W.W. Sm. *''Rhododendron wattii'' Cowan *''Rhododendron watsonii'' Hemsl. & E.H. Wilson *''Rhododendron websterianum'' Rehder & E.H. Wilson *''Rhododendron westlandii'' Hemsl. *''Rhododendron weyrichii'' Maxim. *''Rhododendron wightii'' Hook. f. *''Rhododendron wilhelminae'' Hochr. *''Rhododendron williamsianum'' Rehder & E.H. Wilson *''Rhododendron wiltonii'' Hemsl. & E.H. Wilson *''Rhododendron wolongense'' W.K. Hu *''Rhododendron wongii'' Hemsl. & E.H. Wilson *''Rhododendron wrayi'' King & Gamble *''Rhododendron wumingense'' W.P. Fang


X

*''Rhododendron xanthanthum'' (Tagg & Forrest) D.F. Chamb. *''Rhododendron xanthocodon'' Hutch. *''Rhododendron xanthostephanum'' Merr. *''Rhododendron xiaoxidongense'' W.K. Hu *''Rhododendron xichangense'' Z.J. Zhao *''Rhododendron xiguense'' Ching & H.P. Yang


Y

*''Rhododendron yakushimense'' (M.Tash. & H.Hatta) Craven *''Rhododendron yangmingshanense'' P.C. Tam *''Rhododendron yaogangxianense'' Qi-xian Liu *''Rhododendron yaoshanense'' L.M. Gao & S.D. Zhang *''Rhododendron yaoshanicum'' W.P. Fang & M.Y. He *''Rhododendron yedoense'' Maxim. *''Rhododendron yizhangense'' Qi-xian Liu *''Rhododendron yuefengense'' G.Z. Li *''Rhododendron yungchangense'' Cullen *''Rhododendron yungningense'' Balf. f. ex Hutch. *''Rhododendron yunnanense'' Franch. *''Rhododendron yushuense'' Z.J. Zhao


Z

*''Rhododendron zaleucum'' Balf. f. & W.W. Sm. *''Rhododendron zekoense'' Y.D. Sun & Z.J. Zhao *''Rhododendron zhangjiajieense'' C.L. Peng & L.H. Yan *''Rhododendron zheguense'' Ching & H.P. Yang *''Rhododendron zhongdianense'' L.C. Hu *''Rhododendron ziyuanense'' P.C. Tam


References

*


External links

{{Commonscat, position=Rhododendron
Edinburgh Rhododendron Monographs
Comprehensive listing and description of all described ''Rhododendron'' species
American Rhododendron Society

Rhododendrons – Species and cultivars from Rododendron.cz project


Rhododendron, * Lists of plant species, Rhododendron Lists of plants, Rhododendron