亞組概述
灌木或
小喬木;幼枝無毛或被密毛,有時還有具柄腺體。成葉上面無毛,通常平滑,稀成泡狀皺紋,下面有一層或兩層毛被,由分枝毛,放射狀毛或簇狀毛組成,通常厚,綿毛狀或氈毛狀,銹紅色、黃褐色至黃色,稀白色,但有時毛被稀疏甚至無毛。花序通常密集,有花5-20朵,總軸縮短;花萼杯狀,小或大,花冠質薄,5(-7)裂,鐘形或漏斗狀鐘形,白色、粉紅色至薔薇色或黃色,常具明顯的斑點;雄蕊10(-14);子房無毛或被毛或具腺體和柔毛或僅具腺體;花柱無毛,稀具腺體。
本亞組的模式種:大理杜鵑 R. taliense Franch.
本亞組共54種,5亞種,11變種,我國全有。集中分布於西南部、四川、雲南、西藏,向北分布達於陝西、甘肅、青海,個別種經貴州而分布於安徽,1種向南分布於緬甸。另1種分布於不丹、錫金和尼泊爾。
下級分類
腺房杜鵑Rhododendron adenogynum Diels
雪山杜鵑Rhododendron aganniphum Balf.f. & Kingdon-Ward
雪山杜鵑(原變種)Rhododendron aganniphum Balf.f. & Kingdon-Ward var. aganniphum
黃毛雪山杜鵑(變種)Rhododendron aganniphum Balf.f. & Kingdon-Ward var. flavorufum (Balf.f. & Forrest) D. F. Chamb.
裂毛雪山杜鵑(變種)Rhododendron aganniphum Balf.f. & Kingdon-Ward var. schizopeplum (Balf.f. & Forrest) Ming
棕背杜鵑Rhododendron alutaceum Balf.f. & W. W. Sm.
棕背杜鵑(原變種)Rhododendron alutaceum Balf.f. & W. W. Sm. var. alutaceum
毛枝棕背杜鵑(變種)Rhododendron alutaceum Balf.f. & W. W. Sm. var. iodes (Balf.f. & Forrest) D. F. Chamb.
腺房棕背杜鵑(變種)Rhododendron alutaceum Balf.f. & W. W. Sm. var. russotinctum (Balf.f. & Forrest) D. F. Chamb.
巴朗杜鵑Rhododendron balangense Fang
粉鐘杜鵑Rhododendron balfourianum Diels
白毛粉鐘杜鵑(變種)Rhododendron balfourianum Diels var. aganniphoides Tagg & Forrest
粉鐘杜鵑(原變種)Rhododendron balfourianum Diels var. balfourianum
馬爾康杜鵑Rhododendron barkamense D. F. Chamb.
多葉杜鵑Rhododendron bathyphyllum Balf.f. & Forrest
寬鐘杜鵑Rhododendron beesianum Diels
銹紅杜鵑Rhododendron bureavii Franch.
麻點杜鵑Rhododendron clementinae Forrest
金背杜鵑(亞種)Rhododendron clementinae Forrest subsp. aureodorsale Fang
麻點杜鵑(原亞種)Rhododendron clementinae Forrest subsp. clementinae
腺蕊杜鵑Rhododendron codonanthum Balf.f. & Forrest
粗脈杜鵑Rhododendron coeloneurum Diels
礫石杜鵑Rhododendron comisteum Balf.f. & Forrest
丹巴杜鵑Rhododendron danbaense L. C. Hu
乾淨杜鵑Rhododendron detersile Franch.
落毛杜鵑Rhododendron detonsum Balf.f. & Forrest
疏毛杜鵑Rhododendron dignabile Cowan
灌叢杜鵑Rhododendron dumicola Tagg & Forrest
金江杜鵑Rhododendron elegantulum Tagg & Forrest
金頂杜鵑Rhododendron faberi Hemsl.
金頂杜鵑(原亞種)Rhododendron faberi Hemsl. subsp. faberi
大葉金頂杜鵑(亞種)Rhododendron faberi Hemsl. subsp. prattii (Franch.) D. F. Chamb.
短尖杜鵑Rhododendron inopinum Balf.f.
乳黃杜鵑Rhododendron lacteum Franch.
魯浪杜鵑Rhododendron lulangense L. C. Hu & Tateishi
優異杜鵑Rhododendron mimetes Tagg & Forrest
山地杜鵑Rhododendron montiganum Ming
德欽杜鵑Rhododendron nakotiltum Balf.f. & Forrest
大炮山杜鵑Rhododendron nigroglandulosum Nitz.
奇異杜鵑Rhododendron paradoxum Balf.f.
櫟葉杜鵑Rhododendron phaeochrysum Balf.f. & W. W. Sm.
凝毛杜鵑(變種)Rhododendron phaeochrysum Balf.f. & W. W. Sm. var. agglutinatum (Balf.f. & Forrest) D. F. Chamb.
氈毛櫟葉杜鵑(變種)Rhododendron phaeochrysum Balf.f. & W. W. Sm. var. levistratum (Balf.f. & Forrest) D. F. Chamb.
櫟葉杜鵑(原變種)Rhododendron phaeochrysum Balf.f. & W. W. Sm. var. phaeochrysum
波密杜鵑Rhododendron pomense Cowan & Davidian
甘肅杜鵑Rhododendron potaninii Batal.
藏南杜鵑Rhododendron principis Bur. & Franch.
平臥杜鵑Rhododendron pronum Tagg & Forrest
矮生杜鵑Rhododendron proteoides Balf.f. & W. W. Sm.
隴蜀杜鵑Rhododendron przewalskii Maxim.
毛脈杜鵑Rhododendron pubicostatum Ming
普格杜鵑Rhododendron pugeense L. C. Hu
斑葉杜鵑Rhododendron punctifolium L. C. Hu
太白杜鵑Rhododendron purdomii Rehd. & E. H. Wils.
卷葉杜鵑Rhododendron roxieanum Forrest
兜尖卷葉杜鵑(變種)Rhododendron roxieanum Forrest var. cucullatum (Hand.-Mazz.) D. F. Chamb.
線形卷葉杜鵑(變種)Rhododendron roxieanum Forrest var. oreonastes (Balf.f. & Forrest) Ming
卷葉杜鵑(原變種)Rhododendron roxieanum Forrest var. roxieanum
巫山杜鵑Rhododendron roxieoides D. F. Chamb.
黃毛杜鵑Rhododendron rufum Batal.
都支杜鵑Rhododendron shanii Fang
裂毛杜鵑Rhododendron simulans (Tagg & Forrest) D. F. Chamb.
寬葉杜鵑Rhododendron sphaeroblastum Balf.f. & Forrest
寬葉杜鵑(原變種)Rhododendron sphaeroblastum Balf.f. & Forrest var. sphaeroblastum
烏蒙寬葉杜鵑(變種)Rhododendron sphaeroblastum Balf.f. & Forrest var. wumengense Feng
大理杜鵑Rhododendron taliense Franch.
曲枝杜鵑Rhododendron torquatum L. C. Hu
川滇杜鵑Rhododendron traillianum Forrest & W. W. Sm.
棕背川滇杜鵑(變種)Rhododendron traillianum Forrest & W. W. Sm. var. dictyotum (Balf.f. ex Tagg) D. F. Chamb.
川滇杜鵑(原變種)Rhododendron traillianum Forrest & W. W. Sm. var. traillianum
理縣杜鵑Rhododendron trichogynum L. C. Hu
白毛杜鵑Rhododendron vellereum Hutch. ex Tagg
褐毛杜鵑Rhododendron wasonii Hemsl. & E. H. Wils.
褐毛杜鵑(原變種)Rhododendron wasonii Hemsl. & E. H. Wils. var. wasonii
汶川褐色杜鵑(變種)Rhododendron wasonii Hemsl. & E. H. Wils. var. wenchuanense L. C. Hu
宏鐘杜鵑Rhododendron wightii Hook. f.
皺皮杜鵑Rhododendron wiltonii Hemsl. et Wils.
中甸杜鵑Rhododendron zhongdianense L. C. Hu