| 0 | 53132 | 12E0100017 | 'Panenka' | Rhododendron decorum Franch. | Czechoslovakia | | 1 | 12E0100017 ** |
| 1 | 53135 | 12E0100020 | 'Rose Marie' | Rhododendron decorum Franch. | Czechoslovakia | | 1 | 12E0100020 ** |
| 2 | 53149 | 12E0100034 | 'Boule de Neige' | Rhododendron hybr. | France | | 1 | 12E0100034 ** |
| 3 | 53154 | 12E0100039 | 'Cunningham's White' | Rhododendron hybr. | United Kingdom | | 1 | 12E0100039 ** |
| 4 | 53161 | 12E0100046 | 'Furnivall's Daughter' | Rhododendron hybr. | United Kingdom | | 1 | 12E0100046 ** |
| 5 | 53168 | 12E0100053 | 'Herme' | Rhododendron hybr. | Germany | | 1 | 12E0100053 ** |
| 6 | 53172 | 12E0100057 | 'Hymen' | Rhododendron catawbiense Michx. | Germany | | 1 | 12E0100057 ** |
| 7 | 53219 | 12E0100104 | 'Blue Ensign' | Rhododendron hybr. | United Kingdom | | 1 | 12E0100104 ** |
| 8 | 53244 | 12E0100129 | 'Eidam' | Rhododendron brachycarpum D. Don ex G. Don | Germany | | 1 | 12E0100129 ** |
| 9 | 53262 | 12E0100147 | 'Giganteum' | Rhododendron catawbiense Michx. | United Kingdom | | 1 | 12E0100147 ** |
| 10 | 53277 | 12E0100162 | 'Humboldt' | Rhododendron catawbiense Michx. | Germany | | 1 | 12E0100162 ** |
| 11 | 53296 | 12E0100181 | 'Anilin' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 1 | 12E0100181 ** |
| 12 | 53297 | 12E0100182 | 'Anuschka' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 1 | 12E0100182 ** |
| 13 | 53304 | 12E0100189 | 'Daniela' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 1 | 12E0100189 ** |
| 14 | 53330 | 12E0100215 | 'Hachmann's Porzellan' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 1 | 12E0100215 ** |
| 15 | 53343 | 12E0100228 | 'Schneekrone' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 1 | 12E0100228 ** |
| 16 | 53347 | 12E0100232 | 'Sonatine' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 1 | 12E0100232 ** |
| 17 | 53372 | 12E0100257 | 'Vitalio' | Rhododendron fortunei Lindl. subsp. discolor (Franch.) D. F. Chamb. | Germany | | 1 | 12E0100257 ** |
| 18 | 53392 | 12E0100277 | 'Stadt Essen' | Rhododendron williamsianum Rehder & E. H. Wilson | Germany | | 1 | 12E0100277 ** |
| 19 | 53400 | 12E0100285 | 'Donar' | Rhododendron smirnowii Trautv. | Germany | | 1 | 12E0100285 ** |
| 20 | 53402 | 12E0100287 | 'Kluis Sensation' | Rhododendron griffithianum Wight | Netherlands | | 1 | 12E0100287 ** |
| 21 | 53412 | 12E0100297 | 'Caucasicum Pictum' | Rhododendron caucasicum Pall. | United Kingdom | | 1 | 12E0100297 ** |
| 22 | 53470 | 12E0100355 | 'Hachmann's Marlis' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 1 | 12E0100355 ** |
| 23 | 53477 | 12E0100362 | 'Morgenrot' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 1 | 12E0100362 ** |
| 24 | 53478 | 12E0100363 | 'Clivia' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 1 | 12E0100363 ** |
| 25 | 53544 | 12E0100429 | 'Lady Longman' | Rhododendron hybr. | United Kingdom | | 1 | 12E0100429 ** |
| 26 | 53550 | 12E0100435 | 'Silber' | Rhododendron makinoi Tagg ex Nakai | Germany | | 1 | 12E0100435 ** |
| 27 | 53568 | 12E0100453 | 'Hachmann's Rosenelfe' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 1 | 12E0100453 ** |
| 28 | 53572 | 12E0100457 | 'Schwanensee' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 1 | 12E0100457 ** |
| 29 | 53573 | 12E0100458 | 'Silver Lady' | Rhododendron hybr. | Germany | | 1 | 12E0100458 ** |
| 30 | 53574 | 12E0100459 | 'Sneezy' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | United Kingdom | | 1 | 12E0100459 ** |
| 31 | 53735 | 12E0100839 | 'Kuks' | Rhododendron obtusum (Lindl.) Planch. | Czech Republic | | 1 | 12E0100839 ** |
| 32 | 53742 | 12E0100846 | 'Rohozec' | Rhododendron obtusum (Lindl.) Planch. | Czech Republic | | 1 | 12E0100846 ** |
| 33 | 53751 | 12E0100855 | 'Blue Boy' | Rhododendron hybr. | Washington, United States | | 1 | 12E0100855 ** |
| 34 | 53757 | 12E0100861 | 'Karlstejn' | Rhododendron hybr. | Czech Republic | | 1 | 12E0100861 ** |
| 35 | 53758 | 12E0100862 | 'Becov' | Rhododendron hybr. | Czech Republic | | 1 | 12E0100862 ** |
| 36 | 53771 | 12E0100875 | 'Opocno' | Rhododendron obtusum (Lindl.) Planch. | Czech Republic | | 1 | 12E0100875 ** |
| 37 | 53774 | 12E0100878 | 'Strekov' | Rhododendron hybr. | Czech Republic | | 1 | 12E0100878 ** |