| BIOLOGY | 112 Winter frost damage - leaves | Fig. 11 | 1 - very low, damaged on tips or margins | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| BIOLOGY | 113 Winter frost damage - flower buds | 113 Winter frost damage - flower buds | 5 - intermediate, about 1/2 buds opened or were deformed | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 001 Plant - persistence of leaves | 001 Plant - persistence of leaves | 3 - evergreen | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 002 Plant - density of branches and foliage | 002 Plant - density of branches and foliage | 7 - compact | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 003 Plant - habit | Fig. 1 | 5 - rounded to spreading 1,2 – 0,6 | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 009 Young leaf - waxy bloom on the upper side | Young leaves are observed as soon as they have reached full size | 3 - weak | 2004 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 010 Young leaf - pubescence on the upper side | Young leaves are observed as soon as they have reached full size | 0 - hairless | 2004 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 011 Young leaf - pubescence on the lower side | Young leaves are observed as soon as they have reached full size | 0 - hairless | 2004 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 012 Mature leaf - blade shape | Fig. 2 / Matured leaves are observed at the time of end of growth | 3 - elliptic | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 013 Mature leaf - blade length | Matured leaves are observed at the time of end of growth | 7 - long 10,1 -14 (cm) | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 023 Inflorescence - attitude on the shoot | Fig. 3 | 1 - terminal | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 024 Inflorescence - number of flowers | 024 Inflorescence - number of flowers | 7 - high 11- 15 | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 025 Inflorescence - shape (cultivars with more than 6 flowers) | Fig. 4 | 5 - spherical | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 026 Flower - shape of flower bud | Fig. 5 | 3 - ovate sharpened | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 028 Flower - funnel-shaped | Fig. 6 | 1 - funnel-shaped | 2023 Research Institute of Ornamental Gardening Pruhonice_Rhododendron | | |
| MORPHOLOGY | 035 Flower - number of corolla lobes | 035 Flower - number of corolla lobes | 3 - low 5 | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 036 Flower - type of the flower | Fig. 8 | 1 - single | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 037 Flower - corolla undulation of margins | 037 Flower - corolla undulation of margins | 3 - weak | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 038 Flower - colour of corolla edges in comparison with flower colour | 038 Flower - colour of corolla edges in comparison with flower colour | 7 - darker | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 039 Flower - colour stability (comparison old and young flower) | 039 Flower - colour stability (comparison old and young flower) | 3 - lighter | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 063 Flower - deepness of colour on inner side | 063 Flower - deepness of colour on inner side | 5 - medium deep R.H.S. - B | 2023 Research Institute of Ornamental Gardening Pruhonice_Rhododendron | | |
| MORPHOLOGY | 064 Flower - supplemental colour on inner side | 064 Flower - supplemental colour on inner side | 2 - white | 2023 Research Institute of Ornamental Gardening Pruhonice_Rhododendron | | |
| MORPHOLOGY | 087 Flower - deepness of colour on outer side | 087 Flower - deepness of colour on outer side | 7 - deep R.H.S. - A | 2023 Research Institute of Ornamental Gardening Pruhonice_Rhododendron | | |
| MORPHOLOGY | 099 The ratio pistil : stamens length | 099 The ratio pistil : stamens length | 6 - pistil longer | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 100 Pistil - stigma colour | 100 Pistil - stigma colour | 6 - brown | 2023 Research Institute of Ornamental Gardening Pruhonice_Rhododendron | | |
| MORPHOLOGY | 101 Pistil - uniformity of style colour | 101 Pistil - uniformity of style colour | 1 - unified | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 102 Pistil - unifed colour of style | 102 Pistil - unifed colour of style | 8 - purple red | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 103 Pistil - double colour of style | 103 Pistil - double colour of style | 0 - absent | 2023 Research Institute of Ornamental Gardening Pruhonice_Rhododendron | | |
| MORPHOLOGY | 109 Flower - time of beginning of flowering | Comparative varieties: 2. ‘Bouzov’, 3. ‘Alena’, 4. ‘Motýl’, 5. ‘Catawbiense Grandiflorum’, 7 ‘James Burchett’. Specific values (time period) valid for central Bohemian mesophyticum (Průhonice). | 5 - medium 16.5.-30.6. | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 111 Flower - fragrance | 111 Flower - fragrance | 0 - absent | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 065 Flower - arrangement of supplemental colour on inner side | 065 Flower - arrangement of supplemental colour on inner side | 6 - throat | 2023 Research Institute of Ornamental Gardening Pruhonice_Rhododendron | | |
| MORPHOLOGY | 090 Flower - presence of design | 090 Flower - presence of design | 1 - present | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 092 Flower - distinctness of design | 092 Flower - distinctness of design | 9 - very strong | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 093 Flower - location of design | Fig. 9 | 2 - upper three lobes | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 094 Flower - type of design | Fig. 10 | 4 - combined | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 096 Flower - colour of design (light colours) | Type variety ‘Genoveva’. Colour observation 1 – 2 days after full bloom of the flower. | 3 - yellow brown | 2023 Research Institute of Ornamental Gardening Pruhonice_Rhododendron | | |
| MORPHOLOGY | 104 Stamens - number | 104 Stamens - number | 4 - low variable 3 - 10 | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 105 Stamens - colour of ripe anthers | 105 Stamens - colour of ripe anthers | 0 - white | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 106 Stamens - colour of filaments | 106 Stamens - colour of filaments | 1 - unified | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 107 Stamens - colour of filaments unified | 107 Stamens - colour of filaments unified | 7 - purple red | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 108 Stamens - double colour of filaments | 108 Stamens - double colour of filaments | 0 - absent | 2023 Research Institute of Ornamental Gardening Pruhonice_Rhododendron | | |
| MORPHOLOGY | 004 Plant - height | In 10 years of age | 9 - very high >120 (cm) | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 007 Young leaf - colour of upper side | Young leaves are observed as soon as they have reached full size | 3 - medium green | 2004 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 008 Young leaf - colour of lower side | Young leaves are observed as soon as they have reached full size | 2 - light green | 2004 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 014 Mature leaf - blade width | Matured leaves are observed at the time of end of growth | 7 - broad 4,1- 6 (cm) | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 015 Mature leaf - petiole length | Matured leaves are observed at the time of end of growth | 3 - short 0,5- 1,4 (cm) | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 018 Mature leaf - indumentum on the lower side | Matured leaves are observed at the time of end of growth | 0 - hairless | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 019 Mature leaf - colour of upper side | Matured leaves are observed at the time of end of growth | 4 - dark green | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 021 Mature leaf - colour of lower side | Matured leaves are observed at the time of end of growth | 3 - medium green | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 030 Flower - diameter | Maximal value at open flower | 5 - intermediate 4,1 - 7 (cm) | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 031 Flower - length of peduncle | 031 Flower - length of peduncle | 5 - intermediate 2,5 - 4 (cm) | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 032 Flower - presence of calyx | 032 Flower - presence of calyx | 0 - absent | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 040 Flower - incision of corolla margin | 040 Flower - incision of corolla margin | 7 - deep > 1/2 | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 041 Flower - inner colour of base in comparison with flower colour | 041 Flower - inner colour of base in comparison with flower colour | 3 - lighter | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| MORPHOLOGY | 016 Mature leaf - pubescence of the petiole | Matured leaves are observed at the time of end of growth | 0 - hairless | 2023 Research Institute of Ornamental Gardening Pruhonice_Rhododendron | | |
| MORPHOLOGY | 017 Mature leaf - petiole colour of the upper side | Matured leaves are observed at the time of end of growth. On the sunny side. | 3 - yellowish green | 2023 Research Institute of Ornamental Gardening Pruhonice_Rhododendron | | |
| MORPHOLOGY | 020 Mature leaf – glossiness of upper side | Matured leaves are observed at the time of end of growth | 1 - weak | 2023 Research Institute of Ornamental Gardening Pruhonice_Rhododendron | | |
| MORPHOLOGY | 053 Flower - red purple colour on inner side (middle tones) | 053 Flower - red purple colour on inner side (middle tones) | 4 - strong / light reddish purple R.H.S. NN74 | 2023 Research Institute of Ornamental Gardening Pruhonice_Rhododendron | | |
| MORPHOLOGY | 077 Flower - red purple colour on outer side (middle tones) | 077 Flower - red purple colour on outer side (middle tones) | 3 - vivid reddish purple, deep / moderate purplish pink R.H.S. N74 | 2023 Research Institute of Ornamental Gardening Pruhonice_Rhododendron | | |
| MORPHOLOGY | 091 Flower – size (extent) of design | 091 Flower – size (extent) of design | 2 - medium | 2023 Research Institute of Ornamental Gardening Pruhonice_Rhododendron | | |
| MORPHOLOGY | 095 Flower - type of design: basal blotch | Type variety ‘Arthur Stevens’. | 0 - absent | 2023 Research Institute of Ornamental Gardening Pruhonice_Rhododendron | | |
| MORPHOLOGY | 097 Flower - colour of design (dark colours) | Type variety ‘Humboldt’. Colour observation 1 – 2 days after full bloom of the flower. | 0 - absent | 2023 Research Institute of Ornamental Gardening Pruhonice_Rhododendron | | |
| MORPHOLOGY | 098 Flower – design – its colour is changing during maturation | 098 Flower – design – its colour is changing during maturation | 1 - present | 2023 Research Institute of Ornamental Gardening Pruhonice_Rhododendron | | |
| PHYSIOLOGY | 122 Reproducibility - cutting | 122 Reproducibility - cutting | 9 - very well - rooted 80-100% | 2002 Research Institute of Ornamental Gardening Pruhonice | | |
| PHYSIOLOGY | 123 Reproducibility - grafting | On the rootstock ‘Cunningham´s White’ | 5 - intermediate affinity | 2002 Research Institute of Ornamental Gardening Pruhonice | | |