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Euphorbia plant named `Imprefant`
PP16908 Euphorbia plant named `Imprefant`
Patent Drawings:Drawing: PP16908-3    
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Inventor: Herdegen
Date Issued: August 1, 2006
Application: 11/113,385
Filed: April 23, 2005
Inventors: Herdegen; Susanne (Dexheim, DE)
Assignee: InnovaPlant GmbH & Co. KG (Gensingen, DE)
Primary Examiner: Bell; Kent
Assistant Examiner: Hwu; June
Attorney Or Agent: Whealy; C. A.
U.S. Class: PLT/302
Field Of Search: PLT/302; PLT/226
International Class: A01H 5/00
U.S Patent Documents:
Foreign Patent Documents:
Other References:









Abstract: A new and distinct cultivar of Euphorbia plant named `Imprefant`, characterized by its compact and mounded plant habit; freely branching habit; burgundy-colored young foliage; resistance to Powdery Mildew; and good garden performance.
Claim: It is claimed:

1. A new and distinct Euphorbia plant named `Imprefant`, as illustrated and described.
Description: Botanical designation:Euphorbia hybrida.

Cultivar denomination: `Imprefant`.

BACKGROUND OF THE INVENTION

The present Invention relates to a new and distinct cultivar of Euphorbia plant, botanically known as Euphorbia hybrida, and hereinafter referred to by the cultivar named Imprefant.

The new Euphorbia is a product of a planned breeding program conducted by the Inventor in Gensingen, Germany. The objective of the breeding program is to create new compact Euphorbia plants with attractive foliage coloration and tolerance toPowdery Mildew.

The new Euphorbia originated from a cross-pollination made by the Inventor in May, 1999 of an unnamed selection of Euphorbia.times.martinii, not patented, as the female, or seed parent, with the Euphorbia amygdaloides cultivar Purpurea, notpatented, as the male, or pollen parent. The new Euphorbia was discovered and selected as a single plant from within the resulting progeny of the cross-pollination in Gensingen, Germany in September, 1999.

Asexual reproduction of the new cultivar by terminal vegetative cuttings since May, 2000 in Gensingen, Germany has shown that the unique features of this new Euphorbia are stable and reproduced true to type in successive generations.

SUMMARY OF THE INVENTION

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

The following traits have been repeatedly observed and are determined to be the unique characteristics of `Imprefant`. These characteristics in combination distinguish `Imprefant` as a new and distinct cultivar: 1. Compact and mounded planthabit. 2. Freely branching habit. 3. Burgundy-colored young foliage. 4. Resistant to Powdery Mildew. 5. Good garden performance.

In side-by-side comparisons conducted in Gensingen, Germany, plants of the new Euphorbia differ primarily from plants of the parents in plant growth habit as plants of the new Euphorbia are more compact and not as vigorous as plants of theparents. In addition, under low temperatures, leaves of plants of the male parent, the cultivar Purpurea, become twisted, whereas leaves of plants of the new Euphorbia do not become twisted under low temperatures.

Plants of the new Euphorbia can be compared to plants of the Euphorbia cultivar Efanthia, not patented. In side-by-side comparisons conducted in Gensingen, Germany, plants of the new Euphorbia differed from plants of the cultivar Efanthia in thefollowing characteristics: 1. Plants of the new Euphorbia were more compact than plants of the cultivar Efanthia. 2. Plants of the new Euphorbia were more resistant to Powdery Mildew than plants of the cultivar Efanthia.

BRIEF DESCRIPTION OFTHE PHOTOGRAPHS

The accompanying colored photographs illustrate the overall appearance of the new cultivar, showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photographs may differ slightlyfrom the color values cited in the detailed botanial description which accurately describe the colors of the new Euphorbia.

The photograph at the top of the sheet is a close-up view of typical leaves of `Imprefant`.

The photograph at that bottom of the sheet comprises a side perspective view of a typical plant of `Imprefant` grown in a container.

DETAILED BOTANICAL DESCRIPTION

The aforementioned photographs and following observations and measurements describe plants grown in Bonsall, Calif., in an outdoor nursery during the fall and winter under full sun conditions with day temperatures ranging from 13 to 35.degree. C. and night temperatures ranging from 4 to 19.degree. C. After planting rooted cuttings, plants were grown for about 19 weeks in 12.5-cm containers. Plants were pinched one time. Color references are made to The Royal Horticultural Society ColourChart, 1995 Edition, except where general terms of ordinary dictionary significance are used. Botanical classification: Euphorbia hybrida cultivar Imprefant. Parentage: Female.--Unnamed selection of Euphorbia.times.martinii, not patented. Maleparent.--Euphorbia amygdaloides cultivar Purpurea, not patented. Propagation: Type.--By cuttings. Time to initiate roots, summer.--About 14 days at temperatures of 20.degree. C. Time to initiate roots, winter.--About 18 days at temperatures of20.degree. C. Time to develop roots.--About 20 days at temperatures of 20.degree. C. Root description.--Fine, white in color. Rooting habit.--Freely branching. Plant description: Plant form and growth habit.--Compact and mounded plant habit; uprightto somewhat outwardly spreading; inverted triangle; perennial subshrub. Moderate growth rate. Branching habit.--Freely branching, usually about 12 lateral branches develop per plant; dense and bushy plant form. Plant height.--About 22 cm. Plantdiameter.--About 34 cm. Lateral branch description.--Length: About 20 cm. Diameter: About 8 mm. Internode length: About 8 mm. Strength: Strong. Texture: Sparsely pubescent. Color: 183A. Foliage description: Arrangement.--Alternate to whorled;simple. Length.--About 4.2 cm. Width.--About 1.2 cm. Shape.--Obovate to elliptical. Apex.--Rounded. Base.--Attentuate. Margin.--Entire. Texture, upper surface.--Glabrous; smooth. Texture, lower surface.--Pubescence along the mid-vein. Venation.--Pinnate, arcuate. Color.--Developing foliage, upper surface: 146B. Developing foliage, lower surface: 183B. Fully developed foliage, upper and lower surfaces 147A to 147B tinged with 183A. Venation, upper and lower surfaces: 146C. Petiole.--Length: About 1.2 cm. Diameter: About 1 mm. Texture, upper and lower surfaces: Smooth, glabrous. Color, upper surface: 183D. Color, lower surface: 183A. Flower description: Flower development has not been observed on plants of the newEuphorbia. Disease/pest resistance: Plants of the new Euphorbia have been observed to be resistant to Powdery Mildew. Plants of the new Euphorbia not been observed to be resistant to pests and other pathogens common to Euphorbia. Temperaturetolerance: Plants of the new Euphorbia are tolerant to temperatures as low as -6.degree. C. and as high as 40.degree. C.

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