| 0 | 53116 | 12E0100001 | 'Alena' | Rhododendron decorum Franch. | Czechoslovakia | | 3 | 12E0100001 ** |
| 1 | 53120 | 12E0100005 | 'Dagmar' | Rhododendron decorum Franch. | Czechoslovakia | | 3 | 12E0100005 ** |
| 2 | 53144 | 12E0100029 | 'Arthur Bedford' | Rhododendron ponticum L. | United Kingdom | | 3 | 12E0100029 ** |
| 3 | 53198 | 12E0100083 | 'Admiral Piet Hein' | Rhododendron hybr. | Netherlands | | 3 | 12E0100083 ** |
| 4 | 53199 | 12E0100084 | 'Verbesserte Adriaan Koster' | Rhododendron hybr. | Netherlands | | 3 | 12E0100084 ** |
| 5 | 53233 | 12E0100118 | 'Bruns Diana' | Rhododendron hybr. | Germany | | 3 | 12E0100118 ** |
| 6 | 53236 | 12E0100121 | 'Dora Weissbach' | Rhododendron hybr. | unknown | | 3 | 12E0100121 ** |
| 7 | 53253 | 12E0100138 | 'Sir Charles Butler' | Rhododendron fortunei Lindl. subsp. fortunei | unknown | | 3 | 12E0100138 ** |
| 8 | 53266 | 12E0100151 | 'Goldfort' | Rhododendron fortunei Lindl. subsp. fortunei | United Kingdom | | 3 | 12E0100151 ** |
| 9 | 53267 | 12E0100152 | 'Goldsworth Yellow' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100152 ** |
| 10 | 53283 | 12E0100168 | 'May Firth' | Rhododendron hybr. | unknown | | 3 | 12E0100168 ** |
| 11 | 53331 | 12E0100216 | 'Cannon's Double' | Rhododendron hybr. | United States | | 3 | 12E0100216 ** |
| 12 | 53373 | 12E0100258 | 'Toucan' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100258 ** |
| 13 | 53375 | 12E0100260 | 'Maharani' | Rhododendron hybr. | Germany | | 3 | 12E0100260 ** |
| 14 | 53397 | 12E0100282 | 'Admiral Vanessa' | Rhododendron fortunei Lindl. subsp. discolor (Franch.) D. F. Chamb. | Germany | | 3 | 12E0100282 ** |
| 15 | 53399 | 12E0100284 | 'Anna Robenek' | Rhododendron fortunei Lindl. subsp. discolor (Franch.) D. F. Chamb. | Germany | | 3 | 12E0100284 ** |
| 16 | 53403 | 12E0100288 | 'Pink Delight' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100288 ** |
| 17 | 53429 | 12E0100314 | 'Persil' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100314 ** |
| 18 | 53441 | 12E0100326 | 'Marimba' | Rhododendron brachycarpum D. Don ex G. Don | Germany | | 3 | 12E0100326 ** |
| 19 | 53464 | 12E0100349 | 'Tamarindos' | Rhododendron hybr. | Germany | | 3 | 12E0100349 ** |
| 20 | 53475 | 12E0100360 | 'Malwine' | Rhododendron hybr. | Germany | | 3 | 12E0100360 ** |
| 21 | 53484 | 12E0100369 | 'Sylphides' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100369 ** |
| 22 | 53490 | 12E0100375 | 'Otto Hahn' | Rhododendron hybr. | Germany | | 3 | 12E0100375 ** |
| 23 | 53492 | 12E0100377 | 'Sarina' | Rhododendron hybr. | Germany | | 3 | 12E0100377 ** |
| 24 | 53499 | 12E0100384 | 'Arthur Stevens' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100384 ** |
| 25 | 53511 | 12E0100396 | 'Curlew' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100396 ** |
| 26 | 53518 | 12E0100403 | 'Saturnus' | Rhododendron hybr. | Netherlands | | 3 | 12E0100403 ** |
| 27 | 53536 | 12E0100421 | 'Hachmann's Juanita' | Rhododendron hybr. | Germany | | 3 | 12E0100421 ** |
| 28 | 53549 | 12E0100434 | 'J. Jennings' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100434 ** |
| 29 | 53560 | 12E0100445 | 'Silver Slipper' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100445 ** |
| 30 | 53571 | 12E0100456 | 'Schneespiegel' | Rhododendron hybr. | Germany | | 3 | 12E0100456 ** |
| 31 | 53586 | 12E0100471 | 'Ballerina' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100471 ** |
| 32 | 53589 | 12E0100474 | 'Cecile' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100474 ** |
| 33 | 53591 | 12E0100476 | 'Fasching' | Rhododendron hybr. | Germany | | 3 | 12E0100476 ** |
| 34 | 53596 | 12E0100481 | 'Glowing Embers' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100481 ** |
| 35 | 53598 | 12E0100483 | 'Golden Flare' | Rhododendron hybr. | Netherlands | | 3 | 12E0100483 ** |
| 36 | 53599 | 12E0100484 | 'Golden Sunset' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100484 ** |
| 37 | 53601 | 12E0100486 | 'Goldtopas' | Rhododendron hybr. | Germany | | 3 | 12E0100486 ** |
| 38 | 53602 | 12E0100487 | 'Hachmann's Harlekin' | Rhododendron hybr. | Germany | | 3 | 12E0100487 ** |
| 39 | 53605 | 12E0100490 | 'Klondyke' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100490 ** |
| 40 | 53625 | 12E0100510 | 'Corneille' | Rhododendron hybr. | unknown | | 3 | 12E0100510 ** |
| 41 | 53638 | 12E0100523 | 'Wildenstein' | Rhododendron kiusianum Makino | unknown | | 3 | 12E0100523 ** |
| 42 | 53649 | 12E0100535 | 'Ginger' | Rhododendron hybr. | unknown | | 3 | 12E0100535 ** |
| 43 | 53650 | 12E0100536 | 'Gloria Mundi' | Rhododendron hybr. | unknown | | 3 | 12E0100536 ** |
| 44 | 53653 | 12E0100539 | 'Hachmann's Granada' | Rhododendron hybr. | Germany | | 3 | 12E0100539 ** |
| 45 | 53654 | 12E0100540 | 'Graziella' | Rhododendron hybr. | Germany | Historic | 3 | 12E0100540 ** |
| 46 | 53665 | 12E0100551 | 'Zofie Podlipska' | Rhododendron yedoense Maxim. var. poukhanense (H. Lév.) Nakai | Czech Republic | | 3 | 12E0100551 ** |
| 47 | 53683 | 12E0100602 | 'Boubin' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 3 | 12E0100602 ** |
| 48 | 53685 | 12E0100604 | 'Profesor Jersov' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 3 | 12E0100604 ** |
| 49 | 53689 | 12E0100608 | 'Oslava' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 3 | 12E0100608 ** |
| 50 | 53691 | 12E0100610 | 'Sazava' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 3 | 12E0100610 ** |
| 51 | 53692 | 12E0100611 | 'Vltava' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 3 | 12E0100611 ** |
| 52 | 53704 | 12E0100808 | 'Nippon' | Rhododendron wardii W. W. Sm. | Germany | | 3 | 12E0100808 ** |
| 53 | 53711 | 12E0100815 | 'Jock Brydon' | Rhododendron occidentale (Torr. & A. Gray) A. Gray | Oregon, United States | | 3 | 12E0100815 ** |
| 54 | 53719 | 12E0100823 | 'Hachmann's Kabarett' | Rhododendron hybr. | Germany | | 3 | 12E0100823 ** |
| 55 | 53724 | 12E0100828 | 'Schneeglanz' | Rhododendron obtusum (Lindl.) Planch. | Germany | | 3 | 12E0100828 ** |
| 56 | 53737 | 12E0100841 | 'Lednice' | Rhododendron obtusum (Lindl.) Planch. | Czech Republic | | 3 | 12E0100841 ** |
| 57 | 53741 | 12E0100845 | 'Profesor Scholz' | Rhododendron dichroanthum Diels subsp. scyphocalyx (Balf. f. & Forrest) Cowan | Czech Republic | | 3 | 12E0100845 ** |
| 58 | 53744 | 12E0100848 | 'Bakkarat' | Rhododendron hybr. | Germany | | 3 | 12E0100848 ** |
| 59 | 53750 | 12E0100854 | 'Wryneck' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100854 ** |
| 60 | 53753 | 12E0100857 | 'Orlik' | Rhododendron hybr. | Czech Republic | | 3 | 12E0100857 ** |
| 61 | 53764 | 12E0100868 | 'Golden Eagle' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100868 ** |
| 62 | 65824 | 12E0100884 | 'Loreta' | Rhododendron wardii W. W. Sm. | Czech Republic | | 3 | 12E0100884 ** |
| 63 | 65825 | 12E0100885 | 'Zvikov' | Rhododendron hybr. | Czech Republic | | 3 | 12E0100885 ** |
| 64 | 65846 | 12E0100888 | 'Snezka' | Rhododendron obtusum (Lindl.) Planch. | Czech Republic | | 3 | 12E0100888 ** |
| 65 | 67927 | 12E0100896 | 'Milesovka' | Rhododendron obtusum (Lindl.) Planch. | Czech Republic | | 3 | 12E0100896 ** |