Rhododendron impositum J.J.Sm.
19981658 Wild collected in Indonesia
20000608 Wild collected in Indonesia
20000635 Wild collected in Indonesia
20000666 Wild collected in Indonesia
20000667 Wild collected in Indonesia
20000669 Wild collected in Indonesia
20000670 Wild collected in Indonesia
20000672 Wild collected in Indonesia
20000673 Wild collected in Indonesia
20000676 Wild collected in Indonesia
20000677 Wild collected in Indonesia
20000678 Wild collected in Indonesia
20091030 Wild collected in Indonesia
Rhododendron incommodum Sleumer
20041840 Wild collected in Papua New Guinea
Rhododendron inconspicuum J.J.Sm.
19614237 Wild collected in Papua New Guinea
19750105 Wild collected in Papua New Guinea
19930808 Wild collected in Indonesia
19930810 Wild collected in Indonesia
20060678 Wild collected in Indonesia
20070210 Wild collected in Indonesia
Rhododendron indicum (L.) Sweet
19151015 Wild collected in Japan
19618032 Cultivated material
19618049 Cultivated material
19699533 Cultivated material
19830529 Wild collected in Japan
19900950 Wild collected in Japan
19901708 Wild collected in Japan
19931404 Wild collected in Japan
19950775 Wild collected in Japan
20061327 Wild collected in Japan
Rhododendron × inopinum Balf.f.
19698661 Cultivated material
19795208 Cultivated material
Rhododendron insculptum Hutch. & Kingdon-Ward
20060948 Wild collected in China
20070448 Wild collected in China
Rhododendron insigne Hemsl. & E.H.Wilson [hybrid]
19568431 Cultivated material
Rhododendron insigne Hemsl. & E.H.Wilson var. insigne
19568430 Cultivated material
19698662 Cultivated material
19795469 Cultivated material
19795470 Cultivated material
19795471 Cultivated material
19795500 Cultivated material
19832504 Cultivated material
Rhododendron × intermedium Tausch
19950705 Cultivated material in Austria
Rhododendron intranervatum Sleumer
19622876 Wild collected in Malaysia