USPP33702P2 - Rhododendron plant named ‘Royal Resilience’ - Google Patents
Rhododendron plant named ‘Royal Resilience’ Download PDFInfo
- Publication number
- USPP33702P2 USPP33702P2 US17/208,194 US202117208194V USPP33702P2 US PP33702 P2 USPP33702 P2 US PP33702P2 US 202117208194 V US202117208194 V US 202117208194V US PP33702 P2 USPP33702 P2 US PP33702P2
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- royal
- resilience
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- 241000208422 Rhododendron Species 0.000 title claims abstract description 10
- 201000010099 disease Diseases 0.000 abstract description 5
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 abstract description 5
- 241000221785 Erysiphales Species 0.000 abstract description 4
- 241000196324 Embryophyta Species 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 5
- 238000002156 mixing Methods 0.000 description 3
- 239000011122 softwood Substances 0.000 description 3
- 241001404085 Rhododendron catawbiense Species 0.000 description 2
- 102220538920 SUMO-conjugating enzyme UBC9_N81A_mutation Human genes 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 241001164374 Calyx Species 0.000 description 1
- 241001573881 Corolla Species 0.000 description 1
- 241000221787 Erysiphe Species 0.000 description 1
- 244000178870 Lavandula angustifolia Species 0.000 description 1
- 235000010663 Lavandula angustifolia Nutrition 0.000 description 1
- 241000932083 Ovulinia azaleae Species 0.000 description 1
- 241000031556 Phytophthora sp. Species 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 231100000676 disease causative agent Toxicity 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000001102 lavandula vera Substances 0.000 description 1
- 235000018219 lavender Nutrition 0.000 description 1
- 230000000442 meristematic effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 210000001672 ovary Anatomy 0.000 description 1
- 230000001850 reproductive effect Effects 0.000 description 1
- 230000021749 root development Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01H—NEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
- A01H6/00—Angiosperms, i.e. flowering plants, characterised by their botanic taxonomy
- A01H6/36—Ericaceae, e.g. azalea, cranberry or blueberry
- A01H6/364—Rhododendron, e.g. Azalea
Definitions
- Botanical classification Rhododendron catawbiense.
- Rhododendron plant of hybrid origin botanically known as Rhododendron catawbiense ‘Royal Resilience’ and will be referred to hereafter by its cultivar name, ‘Royal Resilience’.
- Rhododendron catawbiense Rhododendron catawbiense
- Rhoyal Resilience is a new cultivar of evergreen Rhododendron grown for use as a landscape plant.
- Rhododendron Rhododendron ‘Roseum Elegans’ (not patented) by the Inventor in Raleigh, N.C. in spring of 1995. It is therefore presumed to be a branch mutation of ‘Roseum Elegans’.
- Asexual propagation of the new cultivar was first accomplished by softwood stem cuttings in Zebulon, N.C. in May of 1995 by the Inventor. Asexual propagation by softwood stem cuttings and tissue culture using meristematic tissue has determined that the characteristics of the new cultivar are stable and are reproduced true to type in successive generations.
- the parent of ‘Royal Resilience’ is similar to ‘Royal Resilience’ in flower color, growth habit and blooming time.
- the parent of ‘Royal Resilience’ differs from ‘Royal Resilience’ in having less resistance to powdery mildew and other foliar diseases.
- ‘Royal Resilience’ can also be most closely compared to the Rhododendron cultivar ‘English Roseum’ (not patented).
- ‘English Roseum’ is similar to ‘Royal Resilience’ in growth habit.
- ‘English Roseum’ differs from ‘Royal Resilience’ in having flowers that are more lavender in color.
- FIG. 1 provides a view of ‘Royal Resilience’ in bloom.
- FIG. 2 provides a close-up view of a fully open inflorescence of ‘Royal Resilience’.
- FIG. 3 provides a close-up view of a partially open inflorescence of ‘Royal Resilience’.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Natural Medicines & Medicinal Plants (AREA)
- Physiology (AREA)
- Botany (AREA)
- Developmental Biology & Embryology (AREA)
- Environmental Sciences (AREA)
- Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
Abstract
A new cultivar of hybrid Rhododendron plant named ‘Royal Resilience’ that is characterized by its fast and vigorous growing habit, its good growth in warm climates, and its very good resistance to powdery mildew and other foliar diseases.
Description
Botanical classification: Rhododendron catawbiense.
Cultivar designation: ‘Royal Resilience’.
The present invention relates to a new and distinct cultivar of Rhododendron plant of hybrid origin, botanically known as Rhododendron catawbiense ‘Royal Resilience’ and will be referred to hereafter by its cultivar name, ‘Royal Resilience’. ‘Royal Resilience’ is a new cultivar of evergreen Rhododendron grown for use as a landscape plant.
The new cultivar was discovered in a large field that had been planted with plants produced by cuttings of Rhododendron ‘Roseum Elegans’ (not patented) by the Inventor in Raleigh, N.C. in spring of 1995. It is therefore presumed to be a branch mutation of ‘Roseum Elegans’.
Asexual propagation of the new cultivar was first accomplished by softwood stem cuttings in Zebulon, N.C. in May of 1995 by the Inventor. Asexual propagation by softwood stem cuttings and tissue culture using meristematic tissue has determined that the characteristics of the new cultivar are stable and are reproduced true to type in successive generations.
The following traits have been repeatedly observed and represent the characteristics of ‘Royal Resilience’. These attributes in combination distinguish ‘Royal Resilience’ as a new and distinct cultivar of Rhododendron.
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- 1. ‘Royal Resilience’ exhibits a fast and vigorous growing habit.
- 2. ‘Royal Resilience’ exhibits good growth in warm climates.
- 3. ‘Royal Resilience’ exhibits very good resistance to powdery mildew and other foliar diseases.
The parent of ‘Royal Resilience’ is similar to ‘Royal Resilience’ in flower color, growth habit and blooming time. The parent of ‘Royal Resilience’ differs from ‘Royal Resilience’ in having less resistance to powdery mildew and other foliar diseases. ‘Royal Resilience’ can also be most closely compared to the Rhododendron cultivar ‘English Roseum’ (not patented). ‘English Roseum’ is similar to ‘Royal Resilience’ in growth habit. ‘English Roseum’ differs from ‘Royal Resilience’ in having flowers that are more lavender in color.
The accompanying color photographs were taken of a 15-year-old plant of the new cultivar as grown outdoors in a nursery plot in Zebulon, N.C.
The photograph in FIG. 1 provides a view of ‘Royal Resilience’ in bloom.
The photograph in FIG. 2 provides a close-up view of a fully open inflorescence of ‘Royal Resilience’.
The photograph in FIG. 3 provides a close-up view of a partially open inflorescence of ‘Royal Resilience’.
The colors in the photographs are as close as possible with the digital photography and printing techniques utilized and the color codes in the detailed botanical description accurately describe the new Rhododendron.
The following is a detailed description of 15-year-old plants of the new cultivar as grown outdoors in a nursery plot in Zebulon, N.C. The phenotype of the new cultivar may vary with variations in environmental, climatic, and cultural conditions, as it has not been tested under all possible environmental conditions. The color determination is in accordance with The 2015 Colour Chart of The Royal Horticultural Society, London, England, except where general color terms of ordinary dictionary significance are used.
- General characteristics:
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- Blooming period.—April in Raleigh, N.C.
- Plant type.—Evergreen shrub.
- Plant habit.—Compact, irregularly-rounded, and densely branched.
- Height and spread.—Plants 15 years in age as grown in the landscape average of 2.4 m in height and spread.
- Hardiness.—U.S.D.A. Zones 4 to 8.
- Diseases and pests.—High tolerance to powdery mildew (caused by Erysiphe azalea) and other foliar and root diseases typically caused by Ovulinia azalea and Phytophthora sp. however specific resistant causative agents have not been identified.
- Root description.—Fibrous and 165A in color.
- Propagation.—Tissue culture (preferred) or softwood stem cuttings.
- Root development.—4 weeks to initiate roots and an average of 4 to 6 months to produce a young plant from a rooted cutting.
- Growth rate.—Vigorous.
-
- Stem description:
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- Shape.—Round.
- Stem color.—Young growth; 144A, mature wood; 165A with vertical fissures 165C.
- Stem size.—Main stems; an average of 36 cm in length and 6.5 mm in width, lateral branches; 17 cm in length and 6 mm in width.
- Stem surface.—Young growth; slightly rough to the touch, glabrous, with lenticels; an average of 6 per sq. cm, an average of 1 mm in length and 166A in color, mature wood; moderately rough-barked with vertical fissures and dull.
- Stem aspect.—Lateral stems held an average of 45° to the main stems.
- Stem strength.—Strong.
- Branching.—Densely branched.
-
- Foliage description:
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- Leaf shape.—Elliptic.
- Leaf division.—Simple.
- Leaf base.—Rounded to cuneate.
- Leaf apex.—Acuminate.
- Leaf venation.—Pinnate, upper surface midrib 144A in color with lateral vein color matching leaf coloration, lower surface midrib 145C, lateral veins 138C.
- Leaf margins.—Entire.
- Leaf attachment.—Petiolate.
- Leaf arrangement.—Whorled.
- Leaf internode length.—2 to 5 mm.
- Leaf orientation.—Held slightly upright to horizontal.
- Leaf aspect.—Slightly cupped (convex).
- Leaf surface.—Upper surface; smooth, glabrous, satiny with a thick texture, lower surface; smooth, glabrous, dull.
- Leaf color.—Young leaves upper surface; 147A, young leaves lower surface; 147C, mature and fall leaves upper surface; slightly darker than 147A, mature and fall leaves lower surface; a color between 147B and 147C.
- Leaf size.—Mature to an average of 10 cm in length and 5 cm in width.
- Leaf quantity.—An average of 6 leaves per branch 7 cm in length.
- Petioles.—Average of 2.2 mm in length and 3 mm in diameter, rounded on lower surface and flat on upper surface, very strong, 138B in color, surface glabrous and leathery.
-
- Flower description:
-
- Inflorescence type.—Raceme.
- Lastingness of flowers.—An average 9 days, mostly self-cleaning.
- Inflorescence size.—Average of 10 cm in height and 12 cm in width.
- Flower size.—An average of 4 cm in depth and 6.2 cm in diameter.
- Flower fragrance.—Slightly sweet.
- Flower shape.—Broad tubular funnel.
- Flower number.—An average of 14 per inflorescence.
- Flower aspect.—Upright and outward.
- Flower bud.—Obovate in shape, pointed apex, an average of 3.8 cm in length and 1.8 cm in diameter, color; a blend of 72A and N81A and blending into 75A and 75B at base, glabrous and slightly satiny surface.
- Flower attachment.—Pedicel.
- Petal number.—5.
- Petal shape.—Elliptic.
- Petal aspect.—Upward and spreading with apex slightly reflexed.
- Petal color.—Upper surface when opening; a blend of 77B and 77C with margins suffused with 77A and petal spots on one petal 165A, lower surface when opening: a blend of 72A, 72B, and N81A and blending into 75A and 75B at base, upper surface when fully open; a blend of 77C and 77D with margins suffused with 77B and petal spots on one petal 165B, lower surface when fully open; a blend of 77B, 77C, and 77C and blending into 75C and 75D at base, petals drop without fading.
- Petal surface.—Glabrous on upper and lower surface.
- Petal margins.—Entire and slightly undulate.
- Petal apex.—Rounded with small notch at tip.
- Petal base.—Lower 30 to 50% fused.
- Petal size.—Average of 4.4 cm in length and 2.6 cm in width.
- Sepal number.—5.
- Sepal shape.—Broadly ovate.
- Sepal margin.—Entire.
- Sepal size.—Average of 1 mm in length and 1.5 mm in width.
- Sepal arrangement.—Forming a shallow cup around corolla tube base.
- Sepal surface.—Glabrous on upper and lower surface.
- Sepal apex.—Rounded to broadly acute.
- Sepal base.—Fused.
- Sepal color.—Immature and mature upper surface; 145A, immature and mature lower surface; 161D.
- Calyx.—Shallow cup shape, an average of 1 mm in length and 4 mm in diameter.
- Peduncle.—An average of 4 cm in length and 5 mm in width, pedicels implanted in a whorled arrangement, strong, N144C in color, glabrous surface.
- Pedicels.—An average of 3 cm in length and 2 mm in diameter, smooth and glabrous surface, strong, N144A in color.
- Inflorescence bracts.—An average of 12, imbricate, located at base of inflorescence, elliptic in shape, concave, surface glabrous and satiny on both surfaces, entire margin, apiculate apex, truncate base, upper and lower surface a blend of 144A and 144D in color with base 166C.
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- Reproductive organs:
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- Gynoecium.—1 Pistil, 4 cm in length, stigmas; circular, convex, and dome-shaped, 68B and N199D in color, style; an average of 4 cm in length and 1 mm in width, 68B in color, ovary; superior, oblong in shape, 5 mm in length, and 146B in color and suffused at apex with 68A.
- Androecium.—Stamens; average of 10, anthers; oblong to elliptical in shape, 4 mm in length and 1.5 mm in width, 168D in color; pollen is moderate in quantity and 158B in color.
- Fruit/seeds.—None observed.
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Claims (1)
1. A new and distinct cultivar of Rhododendron plant named ‘Royal Resilience’ as herein illustrated and described.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17/208,194 USPP33702P2 (en) | 2021-03-22 | 2021-03-22 | Rhododendron plant named ‘Royal Resilience’ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17/208,194 USPP33702P2 (en) | 2021-03-22 | 2021-03-22 | Rhododendron plant named ‘Royal Resilience’ |
Publications (1)
Publication Number | Publication Date |
---|---|
USPP33702P2 true USPP33702P2 (en) | 2021-11-30 |
Family
ID=78767752
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US17/208,194 Active USPP33702P2 (en) | 2021-03-22 | 2021-03-22 | Rhododendron plant named ‘Royal Resilience’ |
Country Status (1)
Country | Link |
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US (1) | USPP33702P2 (en) |
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2021
- 2021-03-22 US US17/208,194 patent/USPP33702P2/en active Active
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