| 0 | 53116 | 12E0100001 | 'Alena' | Rhododendron decorum Franch. | Czechoslovakia | | 3 | 12E0100001 ** |
| 1 | 53128 | 12E0100013 | 'Milan' | Rhododendron hybr. | Czechoslovakia | | 3 | 12E0100013 ** |
| 2 | 53130 | 12E0100015 | 'Marie Oliva Schlickova' | Rhododendron decorum Franch. | Czechoslovakia | | 3 | 12E0100015 ** |
| 3 | 53149 | 12E0100034 | 'Boule de Neige' | Rhododendron hybr. | France | | 3 | 12E0100034 ** |
| 4 | 53154 | 12E0100039 | 'Cunningham's White' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100039 ** |
| 5 | 53204 | 12E0100089 | 'Allah' | Rhododendron catawbiense Michx. | Germany | | 3 | 12E0100089 ** |
| 6 | 53211 | 12E0100096 | 'Arnim' | Rhododendron hybr. | Germany | | 3 | 12E0100096 ** |
| 7 | 53241 | 12E0100126 | 'Duchess of York' | Rhododendron fortunei Lindl. subsp. fortunei | unknown | | 3 | 12E0100126 ** |
| 8 | 53247 | 12E0100132 | 'Erich' | Rhododendron hybr. | Germany | | 3 | 12E0100132 ** |
| 9 | 53298 | 12E0100183 | 'Bambola' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 3 | 12E0100183 ** |
| 10 | 53317 | 12E0100202 | 'Lissabon' | Rhododendron williamsianum Rehder & E. H. Wilson | Germany | | 3 | 12E0100202 ** |
| 11 | 53330 | 12E0100215 | 'Hachmann's Porzellan' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 3 | 12E0100215 ** |
| 12 | 53344 | 12E0100229 | 'Schneewolke' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 3 | 12E0100229 ** |
| 13 | 53353 | 12E0100238 | 'August Lamken' | Rhododendron williamsianum Rehder & E. H. Wilson | Germany | | 3 | 12E0100238 ** |
| 14 | 53359 | 12E0100244 | 'Hachmann's Evelyn' | Rhododendron hybr. | Germany | | 3 | 12E0100244 ** |
| 15 | 53368 | 12E0100253 | 'Julischka' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 3 | 12E0100253 ** |
| 16 | 53369 | 12E0100254 | 'Hachmann's Junifeuer' | Rhododendron hybr. | Germany | | 3 | 12E0100254 ** |
| 17 | 53385 | 12E0100270 | 'Redwood' | Rhododendron insigne Hemsl. & E. H. Wilson | Germany | | 3 | 12E0100270 ** |
| 18 | 53422 | 12E0100307 | 'Scintillation' | Rhododendron fortunei Lindl. subsp. fortunei | United States | | 3 | 12E0100307 ** |
| 19 | 53449 | 12E0100334 | 'Ariane' | Rhododendron insigne Hemsl. & E. H. Wilson | Germany | | 3 | 12E0100334 ** |
| 20 | 53467 | 12E0100352 | 'Astrid' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 3 | 12E0100352 ** |
| 21 | 53470 | 12E0100355 | 'Hachmann's Marlis' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 3 | 12E0100355 ** |
| 22 | 53477 | 12E0100362 | 'Morgenrot' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 3 | 12E0100362 ** |
| 23 | 53538 | 12E0100423 | 'Janet Blair' | Rhododendron hybr. | United States | | 3 | 12E0100423 ** |
| 24 | 53547 | 12E0100432 | 'Lavendelzauber' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 3 | 12E0100432 ** |
| 25 | 53552 | 12E0100437 | 'Mrs John Penn' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100437 ** |
| 26 | 53556 | 12E0100441 | 'Nofretete' | Rhododendron insigne Hemsl. & E. H. Wilson | United Kingdom | | 3 | 12E0100441 ** |
| 27 | 53570 | 12E0100455 | 'Schlaraffia' | Rhododendron hybr. | unknown | | 3 | 12E0100455 ** |
| 28 | 53572 | 12E0100457 | 'Schwanensee' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 3 | 12E0100457 ** |
| 29 | 53574 | 12E0100459 | 'Sneezy' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | United Kingdom | | 3 | 12E0100459 ** |
| 30 | 53675 | 12E0100561 | 'Vuyk's Rosyred' | Rhododendron hybr. | unknown | | 3 | 12E0100561 ** |
| 31 | 53680 | 12E0100566 | 'Charles Bagley' | Rhododendron catawbiense Michx. | United Kingdom | | 3 | 12E0100566 ** |
| 32 | 53701 | 12E0100805 | 'Johann Stern' | Rhododendron hybr. | Germany | | 3 | 12E0100805 ** |
| 33 | 53748 | 12E0100852 | 'Bouzov' | Rhododendron decorum Franch. | Czech Republic | | 3 | 12E0100852 ** |
| 34 | 53768 | 12E0100872 | 'Osmar' | Rhododendron williamsianum Rehder & E. H. Wilson | United Kingdom | | 3 | 12E0100872 ** |
| 35 | 53775 | 12E0100879 | 'Krakovec' | Rhododendron hybr. | Czech Republic | | 3 | 12E0100879 ** |