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Thuja plant named `Steeplechase`
PP16094 Thuja plant named `Steeplechase`
Patent Drawings:Drawing: PP16094-3    Drawing: PP16094-4    Drawing: PP16094-5    
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(3 images)

Inventor: Jones
Date Issued: November 1, 2005
Application: 10/849,390
Filed: May 19, 2004
Inventors: Jones; Alan (Felton, PA)
Assignee: Manor View Farm, Inc. (Monkton, MD)
Primary Examiner: Bell; Kent
Assistant Examiner: Krawczewicz Myers; Louanne
Attorney Or Agent:
U.S. Class: PLT/213
Field Of Search: PLT/213
International Class:
U.S Patent Documents:
Foreign Patent Documents:
Other References:









Abstract: A new and distinct cultivar of Thuja plant named `Steeplechase`, characterized by its broadly pyramidal plant form; dark green-colored leaves; finely-dissected foliage; and dense and bushy appearance.
Claim: It is claimed:

1. A new and distinct cultivar of Thuja plant named `Steeplechase`, as illustrated and described.
Description: Botanicalclassification/cultivar designation: Thuja standishii.times.Thuja plicata cultivar Steeplechase.

BACKGROUND OF THE INVENTION

The present Invention relates to a new and distinct cultivar of Thuja, botanically known as Thuja standishii.times.Thuja plicata, and hereinafter referred to by the name `Steeplechase`.

The new Thuja is a naturally-occurring branch mutation of the Thuja standishi.times.Thuja plicata cultivar Green Giant, not patented. The Inventor discovered the new Thujaas a single branch mutation within a population of plants of the parent`Green Giant` in a controlled environment in Monkton, Md. during the summer of 1990. The selection of this new Thuja was based of its finely-textured foliage.

Asexual reproduction of the new Thuja by cuttings in a controlled environment in Monkton, Md., since 1990 has shown that the unique features of this new Thuja are stable and reproduced true to type in successive generations.

SUMMARY OF THE INVENTION

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

The following traits have been repeatedly observed and are determined to be the unique characteristics of `Steeplechase`. These characteristics in combination distinguish `Steeplechase` as a new and distinct cultivar of Thuja: 1. Broadlypyramidal plant form. 2. Dark green-colored leaves. 3. Finely-textured foliage; dense and bushy appearance.

Plants of the new Thuja are most similar to plants of the parent, the cultivar Green Giant. In side-by-side comparisons conducted in Monkton, Md., plants of the new Thuja differed from plants of the cultivar Green Giant, in the followingcharacteristics: 1. Plants of the new Thuja were shorter and broader than plants of the cultivar Green Giant. 2. Leaves of plants of the new Thuja were more finely-textured, looser and darker green in color than leaves of plants of the cultivar GreenGiant. 3. Plants of the new Thuja were denser and bushier than plants of the cultivar Green Giant.

BRIEF DESCRIPTION OF THE 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 botanical description which accurately describe the colors of the new Thuja.

The photograph on the first sheet comprises a side perspective view of a typical plant of `Steeplechase` grown in the landscape.

The photograph on the second sheet comprises a side perspective view of typical plants of `Green Giant` (left) and `Steeplechase` (right) grown in the landscape.

The photograph on the third sheet comprises a close-up view of typical branchlets and leaves of `Steeplechase` (left) and `Green Giant` (right).

DETAILED BOTANICAL DESCRIPTION

Plants used for the aforementioned photographs and following observations and measurements were grown in Monkton, Md., during the winter in an outdoor nursery and under conditions which approximate commercial Thuja production. Plants had beengrowing for about 13 years when the photographs and 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: Thujastandishii.times.Thuja plicata cultivar Steeplechase. Patentage: Naturally-occurring branch mutation of the Thuja standishii.times.Thuja plicata cultivar Green Giant, not patented. Propagation: Type.--By cuttings. Time to initiate roots.--About twomonths at 20.degree. C. Time to produce a rooted cutting.--About six months at 20.degree. C. Root description.--Thick, fleshy; white in color. Rooting habit.--Freely branching; dense. Plant description: Form.--Broadly pyramidal perennial evergreentree. Branching habit and branchlets.--Freely branching with branches mostly horizontal and branchlets and terminal branchlets (smallest branchlet divisions) borne in the same plane and loosely pendulous towards the apices. Trees maintain their lowerbranches and foliage to the soil level. Branchlets of current season's growth with scale-like, appressed leaves borne parallel to the axis of the branchlet with alternating facial and lateral leaves. Sprays or terminal branchlets one to two-pinnatewith limited overlapping resulting in a loose and open appearance. Plant height.--About 4.6 to 5.2 meters. Plant diameter.--About 1.5 meter. Trunk description.--Length: About 5 meters. Diameter (at soil level): About 23 cm. Texture: Woody. Color:Brown, close to 177A. Primary branch description.--Length: About 70 cm. Diameter: About 5 cm. Texture: Woody. Color: Brown, close to 177A. Branchlet and terminal description.--Length: About 20 cm. Diameter: About 2 cm. Texture: Woody. Color:Brown, close to 177A. Branchlet leaf description.--Appearance: Flattened and appressed. Length: About 5 to 7 mm. Width: About 3 mm. Shape: Ovate. Apex: Bluntly pointed. Margin: Entire. Venation pattern: Linear. Fragrance: When bruised, tansy. Color: Upper surface, winter: 147A. Lower surface, winter: 137B to 137C. Upper surface, summer: 137A. Lower surface, summer: 137D. Venation, upper and lower surfaces: Same as lamina. Spray leaf description.--Appearance: Flattened and appressed. Length: About 2 to 4 mm. Width: About 2 mm. Shape: Ovate. Apex: Bluntly pointed. Margin: Entire. Venation pattern: Linear. Fragrance: When bruised, tansy. Color: Upper surface, winter: 147A. Lower surface, winter: 137B to 137C. Upper surface,summer: 137A. Lower surface, summer: 137D. Venation, upper and lower surfaces: Same as lamina. Cone description: Cone development has not been observed. Disease/pest resistance: Plants of the new Thuja have not been noted to be resistant to pathogensor pests common to Thujas. Weather tolerance: Plants of the new Thuja have been observed to be tolerant to drought, rain, wind and temperatures ranging from -22 to 40.degree. C.

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