| 0 | 53118 | 12E0100003 | 'Aurora' | Rhododendron smirnowii Trautv. | Czechoslovakia | | 2 | 12E0100003 ** |
| 1 | 53127 | 12E0100012 | 'Marka' | Rhododendron decorum Franch. | Czechoslovakia | | 2 | 12E0100012 ** |
| 2 | 53128 | 12E0100013 | 'Milan' | Rhododendron hybr. | Czechoslovakia | | 2 | 12E0100013 ** |
| 3 | 53129 | 12E0100014 | 'Moravanka' | Rhododendron dichroanthum Diels subsp. scyphocalyx (Balf. f. & Forrest) Cowan | Czechoslovakia | | 2 | 12E0100014 ** |
| 4 | 53131 | 12E0100016 | 'Motyl' | Rhododendron decorum Franch. | Czechoslovakia | | 2 | 12E0100016 ** |
| 5 | 53132 | 12E0100017 | 'Panenka' | Rhododendron decorum Franch. | Czechoslovakia | | 2 | 12E0100017 ** |
| 6 | 53134 | 12E0100019 | 'Profesor Jelinek' | Rhododendron smirnowii Trautv. | Czechoslovakia | | 2 | 12E0100019 ** |
| 7 | 53135 | 12E0100020 | 'Rose Marie' | Rhododendron decorum Franch. | Czechoslovakia | | 2 | 12E0100020 ** |
| 8 | 53137 | 12E0100022 | 'Sputnik' | Rhododendron smirnowii Trautv. | Czechoslovakia | | 2 | 12E0100022 ** |
| 9 | 53139 | 12E0100024 | 'Arnost Silva Tarouca' | Rhododendron decorum Franch. | Czechoslovakia | | 2 | 12E0100024 ** |
| 10 | 53143 | 12E0100028 | 'America' | Rhododendron hybr. | Netherlands | | 2 | 12E0100028 ** |
| 11 | 53155 | 12E0100040 | 'Violetta' | Rhododendron decorum Franch. | Czech Republic | | 2 | 12E0100040 ** |
| 12 | 53157 | 12E0100042 | 'Edward S. Rand' | Rhododendron catawbiense Michx. | United Kingdom | | 2 | 12E0100042 ** |
| 13 | 53176 | 12E0100061 | 'Lady Annette de Trafford' | Rhododendron maximum L. | United Kingdom | | 2 | 12E0100061 ** |
| 14 | 53202 | 12E0100087 | 'Albert Schweitzer' | Rhododendron hybr. | Netherlands | | 2 | 12E0100087 ** |
| 15 | 53221 | 12E0100106 | 'Blue Tit' | Rhododendron impeditum Balf. f. & W. W. Sm. | United Kingdom | | 2 | 12E0100106 ** |
| 16 | 53233 | 12E0100118 | 'Bruns Diana' | Rhododendron hybr. | Germany | | 2 | 12E0100118 ** |
| 17 | 53236 | 12E0100121 | 'Dora Weissbach' | Rhododendron hybr. | unknown | | 2 | 12E0100121 ** |
| 18 | 53252 | 12E0100137 | 'Mount Everest' | Rhododendron hybr. | United Kingdom | | 2 | 12E0100137 ** |
| 19 | 53262 | 12E0100147 | 'Giganteum' | Rhododendron catawbiense Michx. | United Kingdom | | 2 | 12E0100147 ** |
| 20 | 53298 | 12E0100183 | 'Bambola' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 2 | 12E0100183 ** |
| 21 | 53330 | 12E0100215 | 'Hachmann's Porzellan' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 2 | 12E0100215 ** |
| 22 | 53354 | 12E0100239 | 'Blueshine Girl' | Rhododendron wardii W. W. Sm. | Germany | | 2 | 12E0100239 ** |
| 23 | 53371 | 12E0100256 | 'Hachmann's Lagerfeuer' | Rhododendron hybr. | Germany | | 2 | 12E0100256 ** |
| 24 | 53387 | 12E0100272 | 'Hachmann's Rosarka' | Rhododendron insigne Hemsl. & E. H. Wilson | Germany | | 2 | 12E0100272 ** |
| 25 | 53390 | 12E0100275 | 'Seestadt Bremerhaven' | Rhododendron insigne Hemsl. & E. H. Wilson | Germany | | 2 | 12E0100275 ** |
| 26 | 53392 | 12E0100277 | 'Stadt Essen' | Rhododendron williamsianum Rehder & E. H. Wilson | Germany | | 2 | 12E0100277 ** |
| 27 | 53397 | 12E0100282 | 'Admiral Vanessa' | Rhododendron fortunei Lindl. subsp. discolor (Franch.) D. F. Chamb. | Germany | | 2 | 12E0100282 ** |
| 28 | 53412 | 12E0100297 | 'Caucasicum Pictum' | Rhododendron caucasicum Pall. | United Kingdom | | 2 | 12E0100297 ** |
| 29 | 53422 | 12E0100307 | 'Scintillation' | Rhododendron fortunei Lindl. subsp. fortunei | United States | | 2 | 12E0100307 ** |
| 30 | 53423 | 12E0100308 | 'Susan' | Rhododendron hybr. | United Kingdom | | 2 | 12E0100308 ** |
| 31 | 53425 | 12E0100310 | 'Goerlitz' | Rhododendron williamsianum Rehder & E. H. Wilson | Germany | | 2 | 12E0100310 ** |
| 32 | 53429 | 12E0100314 | 'Persil' | Rhododendron hybr. | United Kingdom | | 2 | 12E0100314 ** |
| 33 | 53438 | 12E0100323 | 'Bruns Schneewittchen' | Rhododendron insigne Hemsl. & E. H. Wilson | Germany | | 2 | 12E0100323 ** |
| 34 | 53456 | 12E0100341 | 'Berliner Liebe' | Rhododendron insigne Hemsl. & E. H. Wilson | Germany | | 2 | 12E0100341 ** |
| 35 | 53468 | 12E0100353 | 'Schneeauge' | Rhododendron hybr. | Germany | | 2 | 12E0100353 ** |
| 36 | 53504 | 12E0100389 | 'Besse Howells' | Rhododendron catawbiense Michx. | United States | | 2 | 12E0100389 ** |
| 37 | 53513 | 12E0100398 | 'Schneegold' | Rhododendron hybr. | Germany | | 2 | 12E0100398 ** |
| 38 | 53514 | 12E0100399 | 'Doctor Tjebbes' | Rhododendron hybr. | Netherlands | | 2 | 12E0100399 ** |
| 39 | 53542 | 12E0100427 | 'Kings Ride' | Rhododendron hybr. | United Kingdom | | 2 | 12E0100427 ** |
| 40 | 53560 | 12E0100445 | 'Silver Slipper' | Rhododendron hybr. | United Kingdom | | 2 | 12E0100445 ** |
| 41 | 53570 | 12E0100455 | 'Schlaraffia' | Rhododendron hybr. | unknown | | 2 | 12E0100455 ** |
| 42 | 53573 | 12E0100458 | 'Silver Lady' | Rhododendron hybr. | Germany | | 2 | 12E0100458 ** |
| 43 | 53577 | 12E0100462 | 'The General' | Rhododendron catawbiense Michx. | United States | | 2 | 12E0100462 ** |
| 44 | 53582 | 12E0100467 | 'Soir de Paris' | Rhododendron viscosum (L.) Torr. | Netherlands | | 2 | 12E0100467 ** |
| 45 | 53591 | 12E0100476 | 'Fasching' | Rhododendron hybr. | Germany | | 2 | 12E0100476 ** |
| 46 | 53598 | 12E0100483 | 'Golden Flare' | Rhododendron hybr. | Netherlands | | 2 | 12E0100483 ** |
| 47 | 53610 | 12E0100495 | 'Azurwolke' | Rhododendron hybr. | unknown | | 2 | 12E0100495 ** |
| 48 | 53614 | 12E0100499 | 'Spaetlese' | Rhododendron hybr. | unknown | | 2 | 12E0100499 ** |
| 49 | 53649 | 12E0100535 | 'Ginger' | Rhododendron hybr. | unknown | | 2 | 12E0100535 ** |
| 50 | 53662 | 12E0100548 | 'Marie Podvalova' | Rhododendron yedoense Maxim. var. poukhanense (H. Lév.) Nakai | Czech Republic | | 2 | 12E0100548 ** |
| 51 | 53676 | 12E0100562 | 'Ramapo' | Rhododendron minus Michx. var. minus | unknown | | 2 | 12E0100562 ** |
| 52 | 53677 | 12E0100563 | 'Audia' | Rhododendron impeditum Balf. f. & W. W. Sm. | unknown | | 2 | 12E0100563 ** |
| 53 | 53679 | 12E0100565 | 'Buchlovice' | Rhododendron impeditum Balf. f. & W. W. Sm. | Czechoslovakia | | 2 | 12E0100565 ** |
| 54 | 53697 | 12E0100801 | 'Sychrov' | Rhododendron impeditum Balf. f. & W. W. Sm. | Czechoslovakia | | 2 | 12E0100801 ** |
| 55 | 53701 | 12E0100805 | 'Johann Stern' | Rhododendron hybr. | Germany | | 2 | 12E0100805 ** |
| 56 | 53704 | 12E0100808 | 'Nippon' | Rhododendron wardii W. W. Sm. | Germany | | 2 | 12E0100808 ** |
| 57 | 53706 | 12E0100810 | 'Caroline Allbrook' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | United Kingdom | | 2 | 12E0100810 ** |
| 58 | 53708 | 12E0100812 | 'Hyperion' | Rhododendron hybr. | United Kingdom | | 2 | 12E0100812 ** |
| 59 | 53711 | 12E0100815 | 'Jock Brydon' | Rhododendron occidentale (Torr. & A. Gray) A. Gray | Oregon, United States | | 2 | 12E0100815 ** |
| 60 | 53719 | 12E0100823 | 'Hachmann's Kabarett' | Rhododendron hybr. | Germany | | 2 | 12E0100823 ** |
| 61 | 53731 | 12E0100835 | 'Hachmann's Anastasia' | Rhododendron hybr. | Germany | | 2 | 12E0100835 ** |
| 62 | 53746 | 12E0100850 | 'Fuellhorn' | Rhododendron hybr. | Germany | | 2 | 12E0100850 ** |
| 63 | 53750 | 12E0100854 | 'Wryneck' | Rhododendron hybr. | United Kingdom | | 2 | 12E0100854 ** |
| 64 | 53764 | 12E0100868 | 'Golden Eagle' | Rhododendron hybr. | United Kingdom | | 2 | 12E0100868 ** |