| 0 | 53118 | 12E0100003 | 'Aurora' | Rhododendron smirnowii Trautv. | Czechoslovakia | | 5 | 12E0100003 ** |
| 1 | 53125 | 12E0100010 | 'Lajka' | Rhododendron smirnowii Trautv. | Czechoslovakia | | 5 | 12E0100010 ** |
| 2 | 53126 | 12E0100011 | 'Lunik' | Rhododendron smirnowii Trautv. | Czechoslovakia | | 5 | 12E0100011 ** |
| 3 | 53134 | 12E0100019 | 'Profesor Jelinek' | Rhododendron smirnowii Trautv. | Czechoslovakia | | 5 | 12E0100019 ** |
| 4 | 53152 | 12E0100037 | 'Catawbiense Boursault' | Rhododendron catawbiense Michx. | United Kingdom | | 5 | 12E0100037 ** |
| 5 | 53216 | 12E0100101 | 'Bashful' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | United Kingdom | | 5 | 12E0100101 ** |
| 6 | 53297 | 12E0100182 | 'Anuschka' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 5 | 12E0100182 ** |
| 7 | 53312 | 12E0100197 | 'Kalinka' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 5 | 12E0100197 ** |
| 8 | 53318 | 12E0100203 | 'Lumina' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 5 | 12E0100203 ** |
| 9 | 53340 | 12E0100225 | 'Hachmann's Rosita' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 5 | 12E0100225 ** |
| 10 | 53345 | 12E0100230 | 'Silberwolke' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 5 | 12E0100230 ** |
| 11 | 53382 | 12E0100267 | 'Pink Cherub' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | United Kingdom | | 5 | 12E0100267 ** |
| 12 | 53428 | 12E0100313 | 'Emden' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 5 | 12E0100313 ** |
| 13 | 53489 | 12E0100374 | 'Bruns Loreley' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 5 | 12E0100374 ** |
| 14 | 53517 | 12E0100402 | 'Edelweiss' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 5 | 12E0100402 ** |
| 15 | 53521 | 12E0100406 | 'Falling Snow' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | United States | | 5 | 12E0100406 ** |
| 16 | 53550 | 12E0100435 | 'Silber' | Rhododendron makinoi Tagg ex Nakai | Germany | | 5 | 12E0100435 ** |
| 17 | 53567 | 12E0100452 | 'Rosa Perle' | Rhododendron makinoi Tagg ex Nakai | Germany | | 5 | 12E0100452 ** |
| 18 | 53572 | 12E0100457 | 'Schwanensee' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 5 | 12E0100457 ** |
| 19 | 53608 | 12E0100493 | 'Allotria' | Rhododendron kaempferi Planch. | Germany | | 5 | 12E0100493 ** |
| 20 | 53647 | 12E0100533 | 'George Cunningham' | Rhododendron hybr. | unknown | | 5 | 12E0100533 ** |
| 21 | 53662 | 12E0100548 | 'Marie Podvalova' | Rhododendron yedoense Maxim. var. poukhanense (H. Lév.) Nakai | Czech Republic | | 5 | 12E0100548 ** |
| 22 | 53664 | 12E0100550 | 'Bozena Nemcova' | Rhododendron yedoense Maxim. var. poukhanense (H. Lév.) Nakai | Czech Republic | | 5 | 12E0100550 ** |
| 23 | 53665 | 12E0100551 | 'Zofie Podlipska' | Rhododendron yedoense Maxim. var. poukhanense (H. Lév.) Nakai | Czech Republic | | 5 | 12E0100551 ** |
| 24 | 53672 | 12E0100558 | 'Silvester' | Rhododendron hybr. | Netherlands | | 5 | 12E0100558 ** |
| 25 | 53674 | 12E0100560 | 'Marilee' | Rhododendron nakaharae Hayata | unknown | | 5 | 12E0100560 ** |
| 26 | 53679 | 12E0100565 | 'Buchlovice' | Rhododendron impeditum Balf. f. & W. W. Sm. | Czechoslovakia | | 5 | 12E0100565 ** |
| 27 | 53693 | 12E0100612 | 'Ledikanense' | Rhododendron yedoense Maxim. var. poukhanense (H. Lév.) Nakai | Czechoslovakia | | 5 | 12E0100612 ** |
| 28 | 53756 | 12E0100860 | 'Hluboka' | Rhododendron obtusum (Lindl.) Planch. | Czech Republic | | 5 | 12E0100860 ** |