| 0 | 53117 | 12E0100002 | 'Antonin Dvorak' | Rhododendron smirnowii Trautv. | Czechoslovakia | | 2 | 12E0100002 ** |
| 1 | 53118 | 12E0100003 | 'Aurora' | Rhododendron smirnowii Trautv. | Czechoslovakia | | 2 | 12E0100003 ** |
| 2 | 53124 | 12E0100009 | 'Hurvinek' | Rhododendron dichroanthum Diels subsp. scyphocalyx (Balf. f. & Forrest) Cowan | Czechoslovakia | | 2 | 12E0100009 ** |
| 3 | 53133 | 12E0100018 | 'Petr' | Rhododendron hybr. | Czechoslovakia | | 2 | 12E0100018 ** |
| 4 | 53137 | 12E0100022 | 'Sputnik' | Rhododendron smirnowii Trautv. | Czechoslovakia | | 2 | 12E0100022 ** |
| 5 | 53151 | 12E0100036 | 'Catawbiense Album' | Rhododendron catawbiense Michx. | United Kingdom | | 2 | 12E0100036 ** |
| 6 | 53152 | 12E0100037 | 'Catawbiense Boursault' | Rhododendron catawbiense Michx. | United Kingdom | | 2 | 12E0100037 ** |
| 7 | 53169 | 12E0100054 | 'Holbein' | Rhododendron hybr. | Germany | | 2 | 12E0100054 ** |
| 8 | 53170 | 12E0100055 | 'Holger' | Rhododendron hybr. | Germany | | 2 | 12E0100055 ** |
| 9 | 53178 | 12E0100063 | 'Lady Clermont' | Rhododendron catawbiense Michx. | United Kingdom | | 2 | 12E0100063 ** |
| 10 | 53216 | 12E0100101 | 'Bashful' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | United Kingdom | | 2 | 12E0100101 ** |
| 11 | 53248 | 12E0100133 | 'Erika' | Rhododendron brachycarpum D. Don ex G. Don | Germany | | 2 | 12E0100133 ** |
| 12 | 53272 | 12E0100157 | 'Hassan' | Rhododendron catawbiense Michx. | Germany | | 2 | 12E0100157 ** |
| 13 | 53275 | 12E0100160 | 'Hermann Nitzschner' | Rhododendron hybr. | Germany | | 2 | 12E0100160 ** |
| 14 | 53311 | 12E0100196 | 'Jacksonii' | Rhododendron caucasicum Pall. | unknown | | 2 | 12E0100196 ** |
| 15 | 53320 | 12E0100205 | 'Mims' | Rhododendron catawbiense Michx. | Germany | | 2 | 12E0100205 ** |
| 16 | 53329 | 12E0100214 | 'Polar Star' | Rhododendron smirnowii Trautv. | Netherlands | | 2 | 12E0100214 ** |
| 17 | 53332 | 12E0100217 | 'Progres' | Rhododendron caucasicum Pall. | unknown | | 2 | 12E0100217 ** |
| 18 | 53336 | 12E0100221 | 'Renata' | Rhododendron hybr. | Germany | | 2 | 12E0100221 ** |
| 19 | 53342 | 12E0100227 | 'Scharnhorst' | Rhododendron catawbiense Michx. | Germany | | 2 | 12E0100227 ** |
| 20 | 53347 | 12E0100232 | 'Sonatine' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 2 | 12E0100232 ** |
| 21 | 53353 | 12E0100238 | 'August Lamken' | Rhododendron williamsianum Rehder & E. H. Wilson | Germany | | 2 | 12E0100238 ** |
| 22 | 53359 | 12E0100244 | 'Hachmann's Evelyn' | Rhododendron hybr. | Germany | | 2 | 12E0100244 ** |
| 23 | 53369 | 12E0100254 | 'Hachmann's Junifeuer' | Rhododendron hybr. | Germany | | 2 | 12E0100254 ** |
| 24 | 53371 | 12E0100256 | 'Hachmann's Lagerfeuer' | Rhododendron hybr. | Germany | | 2 | 12E0100256 ** |
| 25 | 53395 | 12E0100280 | 'Vorwerk Abendsonne' | Rhododendron hybr. | Germany | | 2 | 12E0100280 ** |
| 26 | 53414 | 12E0100299 | 'Hachmann's Constanze' | Rhododendron hybr. | Germany | | 2 | 12E0100299 ** |
| 27 | 53421 | 12E0100306 | 'Queen Mary' | Rhododendron hybr. | Netherlands | | 2 | 12E0100306 ** |
| 28 | 53431 | 12E0100316 | 'Cornelia Schroeder' | Rhododendron hybr. | Germany | | 2 | 12E0100316 ** |
| 29 | 53433 | 12E0100318 | 'Hurricane' | Rhododendron hybr. | United States | | 2 | 12E0100318 ** |
| 30 | 53436 | 12E0100321 | 'Priska' | Rhododendron hybr. | Germany | | 2 | 12E0100321 ** |
| 31 | 53445 | 12E0100330 | 'Pink Perfection' | Rhododendron hybr. | Belgium | | 2 | 12E0100330 ** |
| 32 | 53465 | 12E0100350 | 'Balalaika' | Rhododendron dichroanthum Diels subsp. scyphocalyx (Balf. f. & Forrest) Cowan | Germany | | 2 | 12E0100350 ** |
| 33 | 53466 | 12E0100351 | 'Tarantella' | Rhododendron hybr. | Germany | | 2 | 12E0100351 ** |
| 34 | 53473 | 12E0100358 | 'Puccini' | Rhododendron hybr. | Germany | | 2 | 12E0100358 ** |
| 35 | 53476 | 12E0100361 | 'Sonare' | Rhododendron hybr. | Germany | | 2 | 12E0100361 ** |
| 36 | 53480 | 12E0100365 | 'Eruption' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | unknown | | 2 | 12E0100365 ** |
| 37 | 53481 | 12E0100366 | 'Eggert Rohwer' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 2 | 12E0100366 ** |
| 38 | 53489 | 12E0100374 | 'Bruns Loreley' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 2 | 12E0100374 ** |
| 39 | 53492 | 12E0100377 | 'Sarina' | Rhododendron hybr. | Germany | | 2 | 12E0100377 ** |
| 40 | 53509 | 12E0100394 | 'H. W. Sargent' | Rhododendron catawbiense Michx. | United Kingdom | | 2 | 12E0100394 ** |
| 41 | 53559 | 12E0100444 | 'Pride of Cambridge' | Rhododendron hybr. | unknown | | 2 | 12E0100444 ** |
| 42 | 53568 | 12E0100453 | 'Hachmann's Rosenelfe' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 2 | 12E0100453 ** |
| 43 | 53577 | 12E0100462 | 'The General' | Rhododendron catawbiense Michx. | United States | | 2 | 12E0100462 ** |
| 44 | 53629 | 12E0100514 | 'Diamant Rot' | Rhododendron kiusianum Makino | Germany | | 2 | 12E0100514 ** |
| 45 | 53636 | 12E0100521 | 'Rauschenstein' | Rhododendron kiusianum Makino | *German Democratic Republic | | 2 | 12E0100521 ** |
| 46 | 53638 | 12E0100523 | 'Wildenstein' | Rhododendron kiusianum Makino | unknown | | 2 | 12E0100523 ** |
| 47 | 53654 | 12E0100540 | 'Graziella' | Rhododendron hybr. | Germany | Historic | 2 | 12E0100540 ** |
| 48 | 53682 | 12E0100601 | 'Blanice' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 2 | 12E0100601 ** |
| 49 | 53683 | 12E0100602 | 'Boubin' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 2 | 12E0100602 ** |
| 50 | 53684 | 12E0100603 | 'Doubrava' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 2 | 12E0100603 ** |
| 51 | 53687 | 12E0100606 | 'Morava' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 2 | 12E0100606 ** |
| 52 | 53689 | 12E0100608 | 'Oslava' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 2 | 12E0100608 ** |
| 53 | 53699 | 12E0100803 | 'Reve d'Amour' | Rhododendron viscosum (L.) Torr. | Netherlands | | 2 | 12E0100803 ** |
| 54 | 53709 | 12E0100813 | 'Germania' | Rhododendron hybr. | Germany | | 2 | 12E0100813 ** |
| 55 | 53735 | 12E0100839 | 'Kuks' | Rhododendron obtusum (Lindl.) Planch. | Czech Republic | | 2 | 12E0100839 ** |
| 56 | 53738 | 12E0100842 | 'Lenora' | Rhododendron ferrugineum L. | Czech Republic | | 2 | 12E0100842 ** |
| 57 | 53763 | 12E0100867 | 'Belladona' | Rhododendron hybr. | Czech Republic | | 2 | 12E0100867 ** |
| 58 | 53765 | 12E0100869 | 'Ignatius Sargent' | Rhododendron catawbiense Michx. | United Kingdom | | 2 | 12E0100869 ** |
| 59 | 53766 | 12E0100870 | 'Christian' | Rhododendron catawbiense Michx. | Germany | | 2 | 12E0100870 ** |
| 60 | 53769 | 12E0100873 | 'C. S. Sargent' | Rhododendron catawbiense Michx. | United Kingdom | | 2 | 12E0100873 ** |
| 61 | 53771 | 12E0100875 | 'Opocno' | Rhododendron obtusum (Lindl.) Planch. | Czech Republic | | 2 | 12E0100875 ** |
| 62 | 67928 | 12E0100897 | 'Kozakov' | Rhododendron hybr. | Czech Republic | | 2 | 12E0100897 ** |