Rhododendron keiskei var. ozawae T.Yamaz.
20050254 Wild collected in Japan
20171176 Cultivated from material wild collected in Japan
20221183 Cultivated from material wild collected in Japan
Rhododendron kesangiae D.G.Long & Rushforth var. kesangiae
19841987 Wild collected in Bhutan
19891023 Wild collected in Bhutan
19891024 Wild collected in Bhutan
19891026 Wild collected in Bhutan
19891028 Wild collected in Bhutan
19902629 Wild collected in Bhutan
19902631 Wild collected in Bhutan
19902632 Wild collected in Bhutan
19902677 Wild collected in Bhutan
19902678 Wild collected in Bhutan
19902688 Wild collected in Bhutan
19902733 Wild collected in Bhutan
19902777 Wild collected in Bhutan
19933172 Wild collected in Bhutan
19942909 Wild collected in Bhutan
19942917 Wild collected in Bhutan
20151738 Uncertain
Rhododendron kiusianum Makino var. kiusianum
19191029 Cultivated from material wild collected in Japan
19210003 Cultivated material
19761069 Wild collected in Japan
19771023 Cultivated material
19882697 Wild collected in Japan
19901705 Wild collected in Japan
19941541 Wild collected in Japan
Rhododendron kiusianum var. sataense (Nakai) D.F.Chamb. & S.J.Rae
19773087 Wild collected in Japan
19780615 Uncertain
Rhododendron konori var. phaeopeplum (Sleumer) Argent
19672364 Wild collected in Papua New Guinea
20041841 Wild collected in Papua New Guinea
Rhododendron lagopus var. lagopus (Nakai) Hara
20061520 Wild collected in Japan
Rhododendron lagopus var. niphophilum (T.Yamaz.) T.Yamaz.
20052028 Wild collected in Japan
20071124 Wild collected in Japan
20071560 Wild collected in Japan
20090111 Wild collected in Japan
20110603 Wild collected in Japan
Rhododendron leptanthum var. warianum (Schltr.) Argent
19861635 Wild collected in Papua New Guinea
20130367 Cultivated from material wild collected in Papua New Guinea
Rhododendron longiflorum Lindl. var. longiflorum
19871302 Wild collected in Malaysia
Rhododendron longiflorum var. subcordatum (Becc.) Argent
19913772 Wild collected in Malaysia