Rhododendron coeloneurum Diels
19960612 Wild collected in China
19961810 Wild collected in China
Rhododendron coelorum Wernham
20001920 Wild collected in Indonesia
Rhododendron colemanii R.F.Mill.
20111106 Wild collected in United States of America
20111108 Wild collected in United States of America
Rhododendron collettianum Aitch. & Hemsl.
19702019 Wild collected in Afghanistan
20000795 Wild collected in Pakistan
20221182 Cultivated from material wild collected in Afghanistan
Rhododendron × columbianum (Piper) Harmaja
20171253 Wild collected in United States of America
Rhododendron commonae Foerste
19832058 Wild collected in Papua New Guinea
19832059 Wild collected in Papua New Guinea
19832063 Wild collected in Papua New Guinea
19973649 Wild collected in Papua New Guinea
Rhododendron commonae Foerste [yellow form]
19973645 Wild collected in Papua New Guinea
Rhododendron complexum Balf.f. & W.W.Sm.
19181011 Wild collected in China
19712463 Cultivated from material wild collected in China
19933448 Wild collected in China
19940847 Wild collected in China
20150199 Wild collected in China
20231924 Cultivated from material wild collected in China
20231971 Cultivated from material wild collected in China
Rhododendron concinnum Hemsl.
19520321 Cultivated material
19568288 Cultivated material
19698016 Cultivated material
19698483 Cultivated material
19698686 Cultivated material
19911284 Wild collected in China
19913390 Wild collected in China
19952880 Cultivated material
19971300 Uncertain
19971345 Uncertain
19972978 Uncertain
20000890 Wild collected in China
20121309 Cultivated from material wild collected in China
Rhododendron concinnum Hemsl. Benthamianum Group
19730234 Cultivated material