| 0 | 53123 | 12E0100008 | 'Humoreska' | Rhododendron hybr. | Czechoslovakia | | 7 | 12E0100008 ** |
| 1 | 53125 | 12E0100010 | 'Lajka' | Rhododendron smirnowii Trautv. | Czechoslovakia | | 7 | 12E0100010 ** |
| 2 | 53126 | 12E0100011 | 'Lunik' | Rhododendron smirnowii Trautv. | Czechoslovakia | | 7 | 12E0100011 ** |
| 3 | 53134 | 12E0100019 | 'Profesor Jelinek' | Rhododendron smirnowii Trautv. | Czechoslovakia | | 7 | 12E0100019 ** |
| 4 | 53146 | 12E0100031 | 'Bernstein' | Rhododendron hybr. | Germany | | 7 | 12E0100031 ** |
| 5 | 53155 | 12E0100040 | 'Violetta' | Rhododendron decorum Franch. | Czech Republic | | 7 | 12E0100040 ** |
| 6 | 53160 | 12E0100045 | 'Fastuosum Flore Pleno' | Rhododendron hybr. | unknown | | 7 | 12E0100045 ** |
| 7 | 53173 | 12E0100058 | 'Jewess' | Rhododendron caucasicum Pall. | Germany | | 7 | 12E0100058 ** |
| 8 | 53179 | 12E0100064 | 'Lavender Girl' | Rhododendron fortunei Lindl. subsp. fortunei | United Kingdom | | 7 | 12E0100064 ** |
| 9 | 53223 | 12E0100108 | 'Sweet Simplicity' | Rhododendron ponticum L. | United Kingdom | | 7 | 12E0100108 ** |
| 10 | 53233 | 12E0100118 | 'Bruns Diana' | Rhododendron hybr. | Germany | | 7 | 12E0100118 ** |
| 11 | 53236 | 12E0100121 | 'Dora Weissbach' | Rhododendron hybr. | unknown | | 7 | 12E0100121 ** |
| 12 | 53253 | 12E0100138 | 'Sir Charles Butler' | Rhododendron fortunei Lindl. subsp. fortunei | unknown | | 7 | 12E0100138 ** |
| 13 | 53266 | 12E0100151 | 'Goldfort' | Rhododendron fortunei Lindl. subsp. fortunei | United Kingdom | | 7 | 12E0100151 ** |
| 14 | 53280 | 12E0100165 | 'Ibsen' | Rhododendron smirnowii Trautv. | unknown | | 7 | 12E0100165 ** |
| 15 | 53283 | 12E0100168 | 'May Firth' | Rhododendron hybr. | unknown | | 7 | 12E0100168 ** |
| 16 | 53316 | 12E0100201 | 'Leopardii' | Rhododendron arboreum Sm. | United Kingdom | | 7 | 12E0100201 ** |
| 17 | 53317 | 12E0100202 | 'Lissabon' | Rhododendron williamsianum Rehder & E. H. Wilson | Germany | | 7 | 12E0100202 ** |
| 18 | 53326 | 12E0100211 | 'Oudijk's Sensation' | Rhododendron williamsianum Rehder & E. H. Wilson | Germany | | 7 | 12E0100211 ** |
| 19 | 53330 | 12E0100215 | 'Hachmann's Porzellan' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 7 | 12E0100215 ** |
| 20 | 53344 | 12E0100229 | 'Schneewolke' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 7 | 12E0100229 ** |
| 21 | 53349 | 12E0100234 | 'Scarlet Wonder' | Rhododendron forrestii Balf. f. ex Diels subsp. forrestii | Germany | | 7 | 12E0100234 ** |
| 22 | 53353 | 12E0100238 | 'August Lamken' | Rhododendron williamsianum Rehder & E. H. Wilson | Germany | | 7 | 12E0100238 ** |
| 23 | 53354 | 12E0100239 | 'Blueshine Girl' | Rhododendron wardii W. W. Sm. | Germany | | 7 | 12E0100239 ** |
| 24 | 53360 | 12E0100245 | 'Volker' | Rhododendron hybr. | Germany | | 7 | 12E0100245 ** |
| 25 | 53366 | 12E0100251 | 'Herzas' | Rhododendron wardii W. W. Sm. | Germany | | 7 | 12E0100251 ** |
| 26 | 53371 | 12E0100256 | 'Hachmann's Lagerfeuer' | Rhododendron hybr. | Germany | | 7 | 12E0100256 ** |
| 27 | 53377 | 12E0100262 | 'Obergaertner Robenek' | Rhododendron hybr. | Germany | | 7 | 12E0100262 ** |
| 28 | 53392 | 12E0100277 | 'Stadt Essen' | Rhododendron williamsianum Rehder & E. H. Wilson | Germany | | 7 | 12E0100277 ** |
| 29 | 53403 | 12E0100288 | 'Pink Delight' | Rhododendron hybr. | United Kingdom | | 7 | 12E0100288 ** |
| 30 | 53425 | 12E0100310 | 'Goerlitz' | Rhododendron williamsianum Rehder & E. H. Wilson | Germany | | 7 | 12E0100310 ** |
| 31 | 53426 | 12E0100311 | 'Rothenburg' | Rhododendron williamsianum Rehder & E. H. Wilson | Germany | | 7 | 12E0100311 ** |
| 32 | 53427 | 12E0100312 | 'Vater Boehlje' | Rhododendron hybr. | Germany | | 7 | 12E0100312 ** |
| 33 | 53429 | 12E0100314 | 'Persil' | Rhododendron hybr. | United Kingdom | | 7 | 12E0100314 ** |
| 34 | 53439 | 12E0100324 | 'Ursula Seidel' | Rhododendron hybr. | Germany | | 7 | 12E0100324 ** |
| 35 | 53448 | 12E0100333 | 'Tibet' | Rhododendron williamsianum Rehder & E. H. Wilson | Germany | | 7 | 12E0100333 ** |
| 36 | 53450 | 12E0100335 | 'Silvia' | Rhododendron hybr. | Germany | | 7 | 12E0100335 ** |
| 37 | 53453 | 12E0100338 | 'Odessa' | Rhododendron smirnowii Trautv. | unknown | | 7 | 12E0100338 ** |
| 38 | 53465 | 12E0100350 | 'Balalaika' | Rhododendron dichroanthum Diels subsp. scyphocalyx (Balf. f. & Forrest) Cowan | Germany | | 7 | 12E0100350 ** |
| 39 | 53467 | 12E0100352 | 'Astrid' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 7 | 12E0100352 ** |
| 40 | 53475 | 12E0100360 | 'Malwine' | Rhododendron hybr. | Germany | | 7 | 12E0100360 ** |
| 41 | 53498 | 12E0100383 | 'Ariel' | Rhododendron fortunei Lindl. subsp. discolor (Franch.) D. F. Chamb. | United Kingdom | | 7 | 12E0100383 ** |
| 42 | 53499 | 12E0100384 | 'Arthur Stevens' | Rhododendron hybr. | United Kingdom | | 7 | 12E0100384 ** |
| 43 | 53502 | 12E0100387 | 'Berlin' | Rhododendron williamsianum Rehder & E. H. Wilson | Germany | | 7 | 12E0100387 ** |
| 44 | 53508 | 12E0100393 | 'Buketta' | Rhododendron hybr. | Germany | | 7 | 12E0100393 ** |
| 45 | 53517 | 12E0100402 | 'Edelweiss' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 7 | 12E0100402 ** |
| 46 | 53525 | 12E0100410 | 'General D. Eisenhower' | Rhododendron griffithianum Wight | Netherlands | | 7 | 12E0100410 ** |
| 47 | 53547 | 12E0100432 | 'Lavendelzauber' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 7 | 12E0100432 ** |
| 48 | 53560 | 12E0100445 | 'Silver Slipper' | Rhododendron hybr. | United Kingdom | | 7 | 12E0100445 ** |
| 49 | 53568 | 12E0100453 | 'Hachmann's Rosenelfe' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 7 | 12E0100453 ** |
| 50 | 53598 | 12E0100483 | 'Golden Flare' | Rhododendron hybr. | Netherlands | | 7 | 12E0100483 ** |
| 51 | 53601 | 12E0100486 | 'Goldtopas' | Rhododendron hybr. | Germany | | 7 | 12E0100486 ** |
| 52 | 53625 | 12E0100510 | 'Corneille' | Rhododendron hybr. | unknown | | 7 | 12E0100510 ** |
| 53 | 53651 | 12E0100537 | 'Golden Melodie' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | unknown | | 7 | 12E0100537 ** |
| 54 | 53654 | 12E0100540 | 'Graziella' | Rhododendron hybr. | Germany | Historic | 7 | 12E0100540 ** |
| 55 | 53671 | 12E0100557 | 'Silberglanz' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 7 | 12E0100557 ** |
| 56 | 53696 | 12E0100703 | 'Ma vlast' | Rhododendron forrestii Balf. f. ex Diels | Czechoslovakia | | 7 | 12E0100703 ** |
| 57 | 53699 | 12E0100803 | 'Reve d'Amour' | Rhododendron viscosum (L.) Torr. | Netherlands | | 7 | 12E0100803 ** |
| 58 | 53703 | 12E0100807 | 'Anna Rose Whitney' | Rhododendron hybr. | United States | | 7 | 12E0100807 ** |
| 59 | 53704 | 12E0100808 | 'Nippon' | Rhododendron wardii W. W. Sm. | Germany | | 7 | 12E0100808 ** |
| 60 | 53713 | 12E0100817 | 'Multimaculatum' | Rhododendron ponticum L. | United Kingdom | | 7 | 12E0100817 ** |
| 61 | 53714 | 12E0100818 | 'Monsieur Marcel Menard' | Rhododendron hybr. | France | | 7 | 12E0100818 ** |
| 62 | 53715 | 12E0100819 | 'Viscy' | Rhododendron hybr. | Germany | | 7 | 12E0100819 ** |
| 63 | 53721 | 12E0100825 | 'Gartendirektor Rieger' | Rhododendron williamsianum Rehder & E. H. Wilson | Germany | | 7 | 12E0100825 ** |
| 64 | 53748 | 12E0100852 | 'Bouzov' | Rhododendron decorum Franch. | Czech Republic | | 7 | 12E0100852 ** |
| 65 | 53754 | 12E0100858 | 'Bezdez' | Rhododendron ponticum L. | Czech Republic | | 7 | 12E0100858 ** |
| 66 | 53768 | 12E0100872 | 'Osmar' | Rhododendron williamsianum Rehder & E. H. Wilson | United Kingdom | | 7 | 12E0100872 ** |
| 67 | 65823 | 12E0100883 | 'Rusalka' | Rhododendron decorum Franch. | Czechoslovakia | | 7 | 12E0100883 ** |
| 68 | 65824 | 12E0100884 | 'Loreta' | Rhododendron wardii W. W. Sm. | Czech Republic | | 7 | 12E0100884 ** |
| 69 | 66597 | 12E0100895 | 'Rotkaeppchen' | Rhododendron hybr. | Germany | | 7 | 12E0100895 ** |