| 0 | 53178 | 12E0100063 | 'Lady Clermont' | Rhododendron catawbiense Michx. | United Kingdom | | 7 | 12E0100063 ** |
| 1 | 53229 | 12E0100114 | 'Darius' | Rhododendron smirnowii Trautv. | Germany | | 7 | 12E0100114 ** |
| 2 | 53238 | 12E0100123 | 'Doktor h. c. Alexander Steffen' | Rhododendron hybr. | unknown | | 7 | 12E0100123 ** |
| 3 | 53247 | 12E0100132 | 'Erich' | Rhododendron hybr. | Germany | | 7 | 12E0100132 ** |
| 4 | 53248 | 12E0100133 | 'Erika' | Rhododendron brachycarpum D. Don ex G. Don | Germany | | 7 | 12E0100133 ** |
| 5 | 53315 | 12E0100200 | 'Lamentosa' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 7 | 12E0100200 ** |
| 6 | 53322 | 12E0100207 | 'Mrs P. den Ouden' | Rhododendron hybr. | Netherlands | | 7 | 12E0100207 ** |
| 7 | 53326 | 12E0100211 | 'Oudijk's Sensation' | Rhododendron williamsianum Rehder & E. H. Wilson | Germany | | 7 | 12E0100211 ** |
| 8 | 53331 | 12E0100216 | 'Cannon's Double' | Rhododendron hybr. | United States | | 7 | 12E0100216 ** |
| 9 | 53342 | 12E0100227 | 'Scharnhorst' | Rhododendron catawbiense Michx. | Germany | | 7 | 12E0100227 ** |
| 10 | 53349 | 12E0100234 | 'Scarlet Wonder' | Rhododendron forrestii Balf. f. ex Diels subsp. forrestii | Germany | | 7 | 12E0100234 ** |
| 11 | 53355 | 12E0100240 | 'Hachmann's Brasilia' | Rhododendron wardii W. W. Sm. | Germany | | 7 | 12E0100240 ** |
| 12 | 53357 | 12E0100242 | 'Elisabeth Hobbie' | Rhododendron forrestii Balf. f. ex Diels subsp. forrestii | Germany | | 7 | 12E0100242 ** |
| 13 | 53363 | 12E0100248 | 'Bad Eilsen' | Rhododendron forrestii Balf. f. ex Diels subsp. forrestii | Germany | | 7 | 12E0100248 ** |
| 14 | 53393 | 12E0100278 | 'Van Der Hoop' | Rhododendron hybr. | Netherlands | | 7 | 12E0100278 ** |
| 15 | 53395 | 12E0100280 | 'Vorwerk Abendsonne' | Rhododendron hybr. | Germany | | 7 | 12E0100280 ** |
| 16 | 53403 | 12E0100288 | 'Pink Delight' | Rhododendron hybr. | United Kingdom | | 7 | 12E0100288 ** |
| 17 | 53444 | 12E0100329 | 'Doktor Ernst Schaele' | Rhododendron forrestii Balf. f. ex Diels subsp. forrestii | Germany | | 7 | 12E0100329 ** |
| 18 | 53451 | 12E0100336 | 'Graefin Kirchbach' | Rhododendron forrestii Balf. f. ex Diels subsp. forrestii | Germany | | 7 | 12E0100336 ** |
| 19 | 53453 | 12E0100338 | 'Odessa' | Rhododendron smirnowii Trautv. | unknown | | 7 | 12E0100338 ** |
| 20 | 53463 | 12E0100348 | 'Polarnacht' | Rhododendron hybr. | Germany | | 7 | 12E0100348 ** |
| 21 | 53466 | 12E0100351 | 'Tarantella' | Rhododendron hybr. | Germany | | 7 | 12E0100351 ** |
| 22 | 53467 | 12E0100352 | 'Astrid' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 7 | 12E0100352 ** |
| 23 | 53493 | 12E0100378 | 'Claudine' | Rhododendron hybr. | Germany | | 7 | 12E0100378 ** |
| 24 | 53494 | 12E0100379 | 'Parkfeuer' | Rhododendron hybr. | Germany | | 7 | 12E0100379 ** |
| 25 | 53523 | 12E0100408 | 'Francesca' | Rhododendron hybr. | United States | | 7 | 12E0100408 ** |
| 26 | 53526 | 12E0100411 | 'Gina Lollobrigida' | Rhododendron hybr. | Netherlands | | 7 | 12E0100411 ** |
| 27 | 53549 | 12E0100434 | 'J. Jennings' | Rhododendron hybr. | United Kingdom | | 7 | 12E0100434 ** |
| 28 | 53580 | 12E0100465 | 'Torero' | Rhododendron hybr. | Germany | | 7 | 12E0100465 ** |
| 29 | 53589 | 12E0100474 | 'Cecile' | Rhododendron hybr. | United Kingdom | | 7 | 12E0100474 ** |
| 30 | 53596 | 12E0100481 | 'Glowing Embers' | Rhododendron hybr. | United Kingdom | | 7 | 12E0100481 ** |
| 31 | 53608 | 12E0100493 | 'Allotria' | Rhododendron kaempferi Planch. | Germany | | 7 | 12E0100493 ** |
| 32 | 53615 | 12E0100500 | 'Brunella' | Rhododendron hybr. | unknown | | 7 | 12E0100500 ** |
| 33 | 53625 | 12E0100510 | 'Corneille' | Rhododendron hybr. | unknown | | 7 | 12E0100510 ** |
| 34 | 53631 | 12E0100516 | 'Doria' | Rhododendron brachycarpum D. Don ex G. Don | Germany | | 7 | 12E0100516 ** |
| 35 | 53635 | 12E0100520 | 'Lilienstein' | Rhododendron kiusianum Makino | *German Democratic Republic | | 7 | 12E0100520 ** |
| 36 | 53637 | 12E0100522 | 'Schrammstein' | Rhododendron kiusianum Makino | unknown | | 7 | 12E0100522 ** |
| 37 | 53639 | 12E0100524 | 'Hachmann's Estrella' | Rhododendron hybr. | Germany | | 7 | 12E0100524 ** |
| 38 | 53644 | 12E0100530 | 'Florida' | Rhododendron hybr. | unknown | | 7 | 12E0100530 ** |
| 39 | 53649 | 12E0100535 | 'Ginger' | Rhododendron hybr. | unknown | | 7 | 12E0100535 ** |
| 40 | 53650 | 12E0100536 | 'Gloria Mundi' | Rhododendron hybr. | unknown | | 7 | 12E0100536 ** |
| 41 | 53660 | 12E0100546 | 'Hinodegiri' | Rhododendron hybr. | Japan | | 7 | 12E0100546 ** |
| 42 | 53672 | 12E0100558 | 'Silvester' | Rhododendron hybr. | Netherlands | | 7 | 12E0100558 ** |
| 43 | 53675 | 12E0100561 | 'Vuyk's Rosyred' | Rhododendron hybr. | unknown | | 7 | 12E0100561 ** |
| 44 | 53686 | 12E0100605 | 'Labe' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 7 | 12E0100605 ** |
| 45 | 53698 | 12E0100802 | 'Olin O. Dobbs' | Rhododendron hybr. | Oregon, United States | | 7 | 12E0100802 ** |
| 46 | 53705 | 12E0100809 | 'Bilderdijk' | Rhododendron hybr. | Belgium | | 7 | 12E0100809 ** |
| 47 | 53707 | 12E0100811 | 'Frank Galsworthy' | Rhododendron ponticum L. | United Kingdom | | 7 | 12E0100811 ** |
| 48 | 53712 | 12E0100816 | 'Madame Albert van Hecke' | Rhododendron kaempferi Planch. | Belgium | | 7 | 12E0100816 ** |
| 49 | 53715 | 12E0100819 | 'Viscy' | Rhododendron hybr. | Germany | | 7 | 12E0100819 ** |
| 50 | 53720 | 12E0100824 | 'Turkana' | Rhododendron hybr. | Germany | | 7 | 12E0100824 ** |
| 51 | 53728 | 12E0100832 | 'Moser's Maroon' | Rhododendron hybr. | France | | 7 | 12E0100832 ** |
| 52 | 53729 | 12E0100833 | 'Taurus' | Rhododendron catawbiense Michx. | United States | | 7 | 12E0100833 ** |
| 53 | 53730 | 12E0100834 | 'Hachmann's Feuerschein' | Rhododendron hybr. | Germany | | 7 | 12E0100834 ** |
| 54 | 53734 | 12E0100838 | 'Cervena Lhota' | Rhododendron obtusum (Lindl.) Planch. | Czech Republic | | 7 | 12E0100838 ** |
| 55 | 53761 | 12E0100865 | 'Kromeriz' | Rhododendron kiusianum Makino | Czech Republic | | 7 | 12E0100865 ** |
| 56 | 53764 | 12E0100868 | 'Golden Eagle' | Rhododendron hybr. | United Kingdom | | 7 | 12E0100868 ** |
| 57 | 53765 | 12E0100869 | 'Ignatius Sargent' | Rhododendron catawbiense Michx. | United Kingdom | | 7 | 12E0100869 ** |
| 58 | 65857 | 12E0100890 | 'Kriemhild' | Rhododendron wardii W. W. Sm. | Germany | | 7 | 12E0100890 ** |
| 59 | 68273 | 12E0100568 | 'Certoryje' | Rhododendron obtusum (Lindl.) Planch. | Czech Republic | | 7 | 12E0100568 ** |