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Poinsettia plant named `KLEW01066`
PP13621 Poinsettia plant named `KLEW01066`
Patent Drawings:Drawing: PP13621-3    
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Inventor: Klemm
Date Issued: March 4, 2003
Application: 10/036,945
Filed: December 31, 2001
Inventors: Klemm; Nils (Stuttgart, DE)
Assignee: Klemm + Sohn GmbH + KG (Stuttgart, DE)
Primary Examiner: Campell; Bruce R.
Assistant Examiner: Kizilkaya; Michelle
Attorney Or Agent: Whealy; C. A.
U.S. Class: PLT/307
Field Of Search: PLT/307; PLT/306
International Class:
U.S Patent Documents:
Foreign Patent Documents:
Other References:

Abstract: A new and distinct cultivar of Poinsettia plant named `KLEW01066`, characterized by its uniform and rounded plant habit; dark green-colored leaves with purple-colored petioles; brilliant red-colored flower bracts; early flowering habit; and good post-production longevity.
Claim: It is claimed:

1. A new and distinct cultivar of Poinsettia plant named `KLEW01066`, as illustrated and described.

Euphorbia pulcherrima Willd. cultivar KLEW01066.


The present Invention relates to a new and distinct cultivar of Poinsettia plant, botanically known as Euphorbia pulcherrima Willd., and hereinafter referred to by the name `KLEW01066`.

The new Poinsettia is a product of a planned breeding program conducted by the Inventor in Stuttgart, Germany. The objective of the breeding program is to create new Poinsettia cultivars with attractive flower bract coloration and uniform planthabit.

The new Poinsettia originated from a cross made by the Inventor in 1996 of a proprietary selection of Euphorbia pulcherrima Willd. identified as code number K 137, not patented, as the female, or seed, parent, with an unidentified proprietaryselection of Euphorbia pulcherrima Willd., not patented, as the male, or pollen, parent. The cultivar KLEW01066 was discovered and selected by the Inventor in 1998 as a flowering plant within the progeny of the stated cross in a controlled environmentin Stuttgart, Germany. The selection of this plant was based on its attractive flower bract coloration and uniform plant habit.

Asexual reproduction of the new Poinsettia by vegetative terminal cuttings taken at Stuttgart, Germany since 1999, has shown that the unique features of this new Poinsettia are stable and reproduced true to type in successive generations ofasexual reproduction.


The following traits have been repeatedly observed and are determined to be the unique characteristics of `KLEW01066`. These characteristics in combination distinguish `KLEW01066` as a new and distinct Poinsettia cultivar: 1. Upright anduniform plant habit. 2. Dark green-colored leaves with purple-colored petioles. 3. Brilliant red-colored flower bracts. 4. Early flowering; response time, about 7.5 weeks. 5. Good post-production longevity.

Plants of the new Poinsettia differ from plants of the female parent, the selection K 137, in the following characteristics: 1. Plants of the new Poinsettia are not as vigorous as plants of the selection K 137. 2. Leaves of plants of the newPoinsettia are darker green than leaves of plants of the selection K 137.

Plants of the new Poinsettia differ primarily from plants of the male parent, the unidentified proprietary selection, in flower bract coloration.

Plants of the new Poinsettia can also be compared to plants of the cultivar Fiscor, disclosed in U.S. Plant Pat. No. 9,364. In side-by-side comparisons conducted in Stuttgart, Germany, plants of the new Poinsettia differed from plants of thecultivar Fiscor in the following characteristics: 1. Plants of the new Poinsettia were not as vigorous than plants of the cultivar Fiscor. 2. Plants of the new Poinsettia had smaller leaves than plants of the cultivar Fiscor.


The accompanying colored photograph illustrates the overall appearance of the new Poinsettia, showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photograph may differ slightlyfrom the color values cited in the detailed botanical description which accurately describe the colors of the new Poinsettia. The photograph comprises a side perspective view of a single flowering plant of `KLEW01066` grown in a container.


Plants of the new Poinsettia have not been observed under all possible environmental conditions. The phenotype may vary somewhat with variations in environment such as temperature, daylength and light intensity, without, however, any variance ingenotype.

The aforementioned photographs, following observations and measurements describe plants grown in Stuttgart, Germany under commercial practice in a glass-covered greenhouse with day temperatures ranging from 20 to C. and nighttemperatures ranging from 16 to C. Cuttings were harvested in August and planted into 12-cm containers when rooted and pinched once. Plants were flowered under natural season short day/long night conditions. Plants were about 15 weeks fromunrooted cuttings when the photographs and the detailed botanical description were taken.

In the following description, color references are made to The Royal Horticultural Society Colour Chart, 1995 Edition, except where general terms of ordinary dictionary significance are used. Botanical classification: Euphorbia pulcherrimaWilld. cultivar KLEW01066. Parentage: Female, or seed, parent.--Proprietary selection of Euphorbia pulcherrima Willd. identified as code number K 137, not patented. Male, or pollen, parent.--Unidentified proprietary selection of Euphorbia pulcherrimaWilld., not patented. Propagation: Type cutting.--Vegetative terminal cuttings. Time to initiate roots.--Summer: About 12 days at C. Winter: About 15 days at C. Time to produce a rooted cutting.--Summer: About 20 days C. Winter: About 23 days at C. Root description.--Fibrous and freely-branching. Plant description: Growth habit.--Upright and uniform plant habit; inverted triangle; top of plant rounded; low vigor. Plant height.--About 20 to 25cm. Plant diameter or spread.--About 30 to 35 cm. Lateral branch description.--Quantity per plant: About four to six lateral branches develop after pinching. Length: About 15 cm. Diameter: About 5 to 10 mm. Internode length: About 2 to 5 cm. Texture: Smooth, glabrous. Color: 143A overlain with 183A. Foliage description.--Arrangement: Alternate, single. Quantity of leaves per lateral branch: About 8 to 15. Length: About 4 to 12 cm. Width: About 2 to 7 cm. Shape: Mostly ovate withirregular lobing. Apex: Acute to acuminate. Base: Obtuse. Margin: Entire with irregular lobing. Venation pattern: Pinnate. Texture, upper and lower surfaces: Glabrous, smooth. Color: Young foliage, upper surface: 144B. Young foliage, lowersurface: 143C. Fully expanded foliage, upper surface: 139A. Fully expanded foliage, lower surface: 137B. Venation, upper surface: 135A. Venation, lower surface: 138B. Petiole: Length: About 3 to 5 cm. Diameter: About 2.5 mm. Texture: Glabrous,smooth. Color, upper and lower surfaces: 183A. Inflorescence description: Inflorescence type and habit.--Inflorescences are compound corymbs of cyathia with colored flower bracts subtending the cyathia. Inflorescences not persistent. Fragrance.--Nonedetected. Natural flowering season.--Autumn/winter; flower initiation and development is induced under short day/long night conditions. Response time.--Early, about 7.5 weeks. Post-production longevity.--Plants of the new Poinsettia maintain goodsubstance and bract color for about three to four weeks under interior conditions and about four to five weeks under greenhouse conditions. Quantity of inflorescences.--One per lateral branch; about four to six per plant. Inflorescence size.--Diameter:About 15 to 20 cm. Height (depth): About 2 to 5 cm. Flower bracts.--Quantity of fully developed flower bracts per inflorescence: About six to eight. Length: About 6 to 9 cm. Width: About 5 to 7 cm. Shape: Mostly ovate with lobing. Apex: Acute toacuminate. Base: Obtuse. Margin: Entire with lobing. Texture, upper and lower surfaces: Glabrous, smooth. Surface: Mostly flat. Color: Developing bracts, upper and lower surfaces: 45B. Fully developed bracts, upper surface: 42A; color does not fadewith subsequent development. Fully developed bracts, lower surface: 47A to 46B. Venation, upper and lower surfaces: Same as flower bracts. Bract petiole: Length: About 1 to 3 cm. Diameter: About 2 mm. Texture: Glabrous, smooth. Color: 183A. Cyathia.--Quantity of cyathia per corymb: About three to five. Diameter of cyathia cluster: About 1.5 to 2.5 cm. Length: About 4 to 7 mm. Diameter: About 3 to 5 mm. Shape: Ovoid. Color, immature and mature: 143C. Nectaries.--Quantity of nectariesper cyathium: One or two. Diameter: About 2 to 3 mm. Color: 13A to 14B. Peduncle.--Length: About 1 to 2 mm. Diameter: About 1 mm. Aspect: Erect. Strength: Moderately strong. Texture: Glabrous, smooth. Color: 144A to 144B. Reproductiveorgans.--Stamens: Quantity of stamens per cyathium: About 5 to 10. Anther shape: Ovoid. Anther length: About 1 mm. Anther color: 9A to 12A. Amount of pollen: Moderate. Pollen color: 9A to 12A. Pistils: Quantity of pistils per cyathium: One. Pistillength: About 3 to 5 mm. Style length: About 2 to 3 mm. Stigma color: 185A. Disease/pest resistance: Resistance to pathogens and pests common to Poinsettias has not been observed on plants grown under commercial conditions.

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