| 0 | 53117 | 12E0100002 | 'Antonin Dvorak' | Rhododendron smirnowii Trautv. | Czechoslovakia | | 3 | 12E0100002 ** |
| 1 | 53120 | 12E0100005 | 'Dagmar' | Rhododendron decorum Franch. | Czechoslovakia | | 3 | 12E0100005 ** |
| 2 | 53121 | 12E0100006 | 'Don Juan' | Rhododendron hybr. | Czechoslovakia | | 3 | 12E0100006 ** |
| 3 | 53123 | 12E0100008 | 'Humoreska' | Rhododendron hybr. | Czechoslovakia | | 3 | 12E0100008 ** |
| 4 | 53127 | 12E0100012 | 'Marka' | Rhododendron decorum Franch. | Czechoslovakia | | 3 | 12E0100012 ** |
| 5 | 53129 | 12E0100014 | 'Moravanka' | Rhododendron dichroanthum Diels subsp. scyphocalyx (Balf. f. & Forrest) Cowan | Czechoslovakia | | 3 | 12E0100014 ** |
| 6 | 53130 | 12E0100015 | 'Marie Oliva Schlickova' | Rhododendron decorum Franch. | Czechoslovakia | | 3 | 12E0100015 ** |
| 7 | 53131 | 12E0100016 | 'Motyl' | Rhododendron decorum Franch. | Czechoslovakia | | 3 | 12E0100016 ** |
| 8 | 53135 | 12E0100020 | 'Rose Marie' | Rhododendron decorum Franch. | Czechoslovakia | | 3 | 12E0100020 ** |
| 9 | 53136 | 12E0100021 | 'Saba' | Rhododendron decorum Franch. | Czechoslovakia | | 3 | 12E0100021 ** |
| 10 | 53138 | 12E0100023 | 'Vilem Heckel' | Rhododendron hybr. | Czechoslovakia | | 3 | 12E0100023 ** |
| 11 | 53139 | 12E0100024 | 'Arnost Silva Tarouca' | Rhododendron decorum Franch. | Czechoslovakia | | 3 | 12E0100024 ** |
| 12 | 53141 | 12E0100026 | 'Album Grandiflorum' | Rhododendron catawbiense Michx. | United Kingdom | | 3 | 12E0100026 ** |
| 13 | 53144 | 12E0100029 | 'Arthur Bedford' | Rhododendron ponticum L. | United Kingdom | | 3 | 12E0100029 ** |
| 14 | 53147 | 12E0100032 | 'Blue Danube' | Rhododendron fortunei Lindl. subsp. discolor (Franch.) D. F. Chamb. | United Kingdom | | 3 | 12E0100032 ** |
| 15 | 53148 | 12E0100033 | Blue Peter | Rhododendron hybr. | United Kingdom | | 3 | 12E0100033 ** |
| 16 | 53151 | 12E0100036 | 'Catawbiense Album' | Rhododendron catawbiense Michx. | United Kingdom | | 3 | 12E0100036 ** |
| 17 | 53155 | 12E0100040 | 'Violetta' | Rhododendron decorum Franch. | Czech Republic | | 3 | 12E0100040 ** |
| 18 | 53166 | 12E0100051 | 'Gomer Waterer' | Rhododendron catawbiense Michx. | United Kingdom | | 3 | 12E0100051 ** |
| 19 | 53167 | 12E0100052 | 'Gudrun' | Rhododendron hybr. | Germany | | 3 | 12E0100052 ** |
| 20 | 53180 | 12E0100065 | 'Lee's Dark Purple' | Rhododendron catawbiense Michx. | unknown | | 3 | 12E0100065 ** |
| 21 | 53182 | 12E0100067 | 'Madame Masson' | Rhododendron hybr. | France | | 3 | 12E0100067 ** |
| 22 | 53214 | 12E0100099 | 'Baden Baden' | Rhododendron forrestii Balf. f. ex Diels subsp. forrestii | Germany | | 3 | 12E0100099 ** |
| 23 | 53231 | 12E0100116 | 'Delta' | Rhododendron hybr. | Germany | | 3 | 12E0100116 ** |
| 24 | 53238 | 12E0100123 | 'Doktor h. c. Alexander Steffen' | Rhododendron hybr. | unknown | | 3 | 12E0100123 ** |
| 25 | 53284 | 12E0100169 | 'Ponticum Roseum' | Rhododendron hybr. | United States | | 3 | 12E0100169 ** |
| 26 | 53295 | 12E0100180 | 'Marie Fortie' | Rhododendron hybr. | Belgium | | 3 | 12E0100180 ** |
| 27 | 53324 | 12E0100209 | 'Von Oheimb - Woislowitz' | Rhododendron catawbiense Michx. | Germany | | 3 | 12E0100209 ** |
| 28 | 53339 | 12E0100224 | 'Roseum Superbum' | Rhododendron catawbiense Michx. | United Kingdom | | 3 | 12E0100224 ** |
| 29 | 53344 | 12E0100229 | 'Schneewolke' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 3 | 12E0100229 ** |
| 30 | 53369 | 12E0100254 | 'Hachmann's Junifeuer' | Rhododendron hybr. | Germany | | 3 | 12E0100254 ** |
| 31 | 53371 | 12E0100256 | 'Hachmann's Lagerfeuer' | Rhododendron hybr. | Germany | | 3 | 12E0100256 ** |
| 32 | 53390 | 12E0100275 | 'Seestadt Bremerhaven' | Rhododendron insigne Hemsl. & E. H. Wilson | Germany | | 3 | 12E0100275 ** |
| 33 | 53393 | 12E0100278 | 'Van Der Hoop' | Rhododendron hybr. | Netherlands | | 3 | 12E0100278 ** |
| 34 | 53397 | 12E0100282 | 'Admiral Vanessa' | Rhododendron fortunei Lindl. subsp. discolor (Franch.) D. F. Chamb. | Germany | | 3 | 12E0100282 ** |
| 35 | 53449 | 12E0100334 | 'Ariane' | Rhododendron insigne Hemsl. & E. H. Wilson | Germany | | 3 | 12E0100334 ** |
| 36 | 53458 | 12E0100343 | 'Belkanto' | Rhododendron hybr. | Germany | | 3 | 12E0100343 ** |
| 37 | 53468 | 12E0100353 | 'Schneeauge' | Rhododendron hybr. | Germany | | 3 | 12E0100353 ** |
| 38 | 53469 | 12E0100354 | 'Hachmann's Diadem' | Rhododendron hybr. | Germany | | 3 | 12E0100354 ** |
| 39 | 53525 | 12E0100410 | 'General D. Eisenhower' | Rhododendron griffithianum Wight | Netherlands | | 3 | 12E0100410 ** |
| 40 | 53527 | 12E0100412 | 'Hachmann's Charmant' | Rhododendron hybr. | Germany | | 3 | 12E0100412 ** |
| 41 | 53529 | 12E0100414 | 'Herkules' | Rhododendron campanulatum D. Don | Germany | | 3 | 12E0100414 ** |
| 42 | 53566 | 12E0100451 | 'Roland' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100451 ** |
| 43 | 53580 | 12E0100465 | 'Torero' | Rhododendron hybr. | Germany | | 3 | 12E0100465 ** |
| 44 | 53649 | 12E0100535 | 'Ginger' | Rhododendron hybr. | unknown | | 3 | 12E0100535 ** |
| 45 | 53651 | 12E0100537 | 'Golden Melodie' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | unknown | | 3 | 12E0100537 ** |
| 46 | 53667 | 12E0100553 | 'Fuego' | Rhododendron haematodes Franch. | Germany | | 3 | 12E0100553 ** |
| 47 | 65857 | 12E0100890 | 'Kriemhild' | Rhododendron wardii W. W. Sm. | Germany | | 3 | 12E0100890 ** |