| 0 | 53126 | 12E0100011 | 'Lunik' | Rhododendron smirnowii Trautv. | Czechoslovakia | | 1 | 12E0100011 ** |
| 1 | 53133 | 12E0100018 | 'Petr' | Rhododendron hybr. | Czechoslovakia | | 1 | 12E0100018 ** |
| 2 | 53173 | 12E0100058 | 'Jewess' | Rhododendron caucasicum Pall. | Germany | | 1 | 12E0100058 ** |
| 3 | 53185 | 12E0100070 | 'Markgraf' | Rhododendron catawbiense Michx. | Germany | | 1 | 12E0100070 ** |
| 4 | 53200 | 12E0100085 | 'Alaric' | Rhododendron hybr. | United Kingdom | | 1 | 12E0100085 ** |
| 5 | 53210 | 12E0100095 | 'Mrs Davies Evans' | Rhododendron hybr. | United Kingdom | | 1 | 12E0100095 ** |
| 6 | 53256 | 12E0100141 | 'Florence Sarah Smith' | Rhododendron hybr. | unknown | | 1 | 12E0100141 ** |
| 7 | 53262 | 12E0100147 | 'Giganteum' | Rhododendron catawbiense Michx. | United Kingdom | | 1 | 12E0100147 ** |
| 8 | 53283 | 12E0100168 | 'May Firth' | Rhododendron hybr. | unknown | | 1 | 12E0100168 ** |
| 9 | 53296 | 12E0100181 | 'Anilin' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 1 | 12E0100181 ** |
| 10 | 53304 | 12E0100189 | 'Daniela' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 1 | 12E0100189 ** |
| 11 | 53336 | 12E0100221 | 'Renata' | Rhododendron hybr. | Germany | | 1 | 12E0100221 ** |
| 12 | 53349 | 12E0100234 | 'Scarlet Wonder' | Rhododendron forrestii Balf. f. ex Diels subsp. forrestii | Germany | | 1 | 12E0100234 ** |
| 13 | 53355 | 12E0100240 | 'Hachmann's Brasilia' | Rhododendron wardii W. W. Sm. | Germany | | 1 | 12E0100240 ** |
| 14 | 53357 | 12E0100242 | 'Elisabeth Hobbie' | Rhododendron forrestii Balf. f. ex Diels subsp. forrestii | Germany | | 1 | 12E0100242 ** |
| 15 | 53362 | 12E0100247 | 'Goldrausch' | Rhododendron wardii W. W. Sm. | Germany | | 1 | 12E0100247 ** |
| 16 | 53363 | 12E0100248 | 'Bad Eilsen' | Rhododendron forrestii Balf. f. ex Diels subsp. forrestii | Germany | | 1 | 12E0100248 ** |
| 17 | 53377 | 12E0100262 | 'Obergaertner Robenek' | Rhododendron hybr. | Germany | | 1 | 12E0100262 ** |
| 18 | 53395 | 12E0100280 | 'Vorwerk Abendsonne' | Rhododendron hybr. | Germany | | 1 | 12E0100280 ** |
| 19 | 53402 | 12E0100287 | 'Kluis Sensation' | Rhododendron griffithianum Wight | Netherlands | | 1 | 12E0100287 ** |
| 20 | 53425 | 12E0100310 | 'Goerlitz' | Rhododendron williamsianum Rehder & E. H. Wilson | Germany | | 1 | 12E0100310 ** |
| 21 | 53451 | 12E0100336 | 'Graefin Kirchbach' | Rhododendron forrestii Balf. f. ex Diels subsp. forrestii | Germany | | 1 | 12E0100336 ** |
| 22 | 53458 | 12E0100343 | 'Belkanto' | Rhododendron hybr. | Germany | | 1 | 12E0100343 ** |
| 23 | 53460 | 12E0100345 | 'Hachmann's Felicitas' | Rhododendron hybr. | Germany | | 1 | 12E0100345 ** |
| 24 | 53461 | 12E0100346 | 'Marietta' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 1 | 12E0100346 ** |
| 25 | 53475 | 12E0100360 | 'Malwine' | Rhododendron hybr. | Germany | | 1 | 12E0100360 ** |
| 26 | 53478 | 12E0100363 | 'Clivia' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 1 | 12E0100363 ** |
| 27 | 53480 | 12E0100365 | 'Eruption' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | unknown | | 1 | 12E0100365 ** |
| 28 | 53483 | 12E0100368 | 'Fruehlingsgold' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 1 | 12E0100368 ** |
| 29 | 53489 | 12E0100374 | 'Bruns Loreley' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 1 | 12E0100374 ** |
| 30 | 53491 | 12E0100376 | 'Mrs R. S. Holford' | Rhododendron catawbiense Michx. | United Kingdom | | 1 | 12E0100376 ** |
| 31 | 53508 | 12E0100393 | 'Buketta' | Rhododendron hybr. | Germany | | 1 | 12E0100393 ** |
| 32 | 53517 | 12E0100402 | 'Edelweiss' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 1 | 12E0100402 ** |
| 33 | 53521 | 12E0100406 | 'Falling Snow' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | United States | | 1 | 12E0100406 ** |
| 34 | 53541 | 12E0100426 | 'Ken Janeck' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | United States | | 1 | 12E0100426 ** |
| 35 | 53542 | 12E0100427 | 'Kings Ride' | Rhododendron hybr. | United Kingdom | | 1 | 12E0100427 ** |
| 36 | 53545 | 12E0100430 | 'Ladybird' | Rhododendron fortunei Lindl. subsp. discolor (Franch.) D. F. Chamb. | United Kingdom | | 1 | 12E0100430 ** |
| 37 | 53559 | 12E0100444 | 'Pride of Cambridge' | Rhododendron hybr. | unknown | | 1 | 12E0100444 ** |
| 38 | 53567 | 12E0100452 | 'Rosa Perle' | Rhododendron makinoi Tagg ex Nakai | Germany | | 1 | 12E0100452 ** |
| 39 | 53580 | 12E0100465 | 'Torero' | Rhododendron hybr. | Germany | | 1 | 12E0100465 ** |
| 40 | 53620 | 12E0100505 | 'Canzonetta' | Rhododendron hybr. | unknown | | 1 | 12E0100505 ** |
| 41 | 53637 | 12E0100522 | 'Schrammstein' | Rhododendron kiusianum Makino | unknown | | 1 | 12E0100522 ** |
| 42 | 53638 | 12E0100523 | 'Wildenstein' | Rhododendron kiusianum Makino | unknown | | 1 | 12E0100523 ** |
| 43 | 53655 | 12E0100541 | 'Haruko' | Rhododendron hybr. | unknown | | 1 | 12E0100541 ** |
| 44 | 53671 | 12E0100557 | 'Silberglanz' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 1 | 12E0100557 ** |
| 45 | 53706 | 12E0100810 | 'Caroline Allbrook' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | United Kingdom | | 1 | 12E0100810 ** |
| 46 | 53726 | 12E0100830 | 'Hermine Seidel' | Rhododendron catawbiense Michx. | Germany | | 1 | 12E0100830 ** |
| 47 | 53729 | 12E0100833 | 'Taurus' | Rhododendron catawbiense Michx. | United States | | 1 | 12E0100833 ** |
| 48 | 53737 | 12E0100841 | 'Lednice' | Rhododendron obtusum (Lindl.) Planch. | Czech Republic | | 1 | 12E0100841 ** |
| 49 | 53747 | 12E0100851 | 'Vizovice' | Rhododendron kiusianum Makino | Czech Republic | | 1 | 12E0100851 ** |
| 50 | 53752 | 12E0100856 | 'Krivoklat' | Rhododendron hybr. | Czech Republic | | 1 | 12E0100856 ** |
| 51 | 53755 | 12E0100859 | 'Kokorin' | Rhododendron hybr. | Czech Republic | | 1 | 12E0100859 ** |
| 52 | 53759 | 12E0100863 | 'Lipnice' | Rhododendron hybr. | Czech Republic | | 1 | 12E0100863 ** |
| 53 | 53772 | 12E0100876 | 'Svihov' | Rhododendron hybr. | Czech Republic | | 1 | 12E0100876 ** |
| 54 | 64798 | 12E0100880 | 'Kotnov' | Rhododendron hybr. | Czech Republic | | 1 | 12E0100880 ** |
| 55 | 64801 | 12E0100881 | 'Jezeri' | Rhododendron obtusum (Lindl.) Planch. | Czech Republic | | 1 | 12E0100881 ** |
| 56 | 65600 | 12E0100882 | 'Klenova' | Rhododendron hybr. | Czech Republic | | 1 | 12E0100882 ** |
| 57 | 67928 | 12E0100897 | 'Kozakov' | Rhododendron hybr. | Czech Republic | | 1 | 12E0100897 ** |