Photinia plant named ‘Parsub’

Abstract

A new and distinct cultivar of Photinia plant named ‘Parsub’ characterized by its upright and outwardly spreading plant habit; dark reddish brown stem coloration; leaves that are brown when developing and green when fully expanded; and undulating leaves with serrulate margins.

Description

Botanical classification: Photinia glabra.

Variety denomination: ‘Parsub’.

BACKGROUND OF THE INVENTION

The present Invention relates to a new and distinct cultivar of Photinia plant, botanically known as Photinia glabra, and hereinafter referred to by the name ‘Parsub’. The new Photinia is a product of a planned breeding program conducted by the Inventor in a cultivated area of Kulnurra, NSW Australia. The objective of the breeding program was to develop new Photinia cultivars with attractive habit and foliage.

The new cultivar originated from open pollination with Photinia ‘Red Robin’ (not patented) as the female parent with an unknown male parent in 2000. The cultivar ‘Parsub’ was discovered and selected by the Inventor in 2001 as a single plant within the progeny. ‘Parsub’ was discovered in an outdoor field from plants that were started in a greenhouse and then transplanted outdoors.

The first asexual reproduction of the new Photinia was in 2001 by terminal cuttings taken at Kulnurra, Australia. The unique features of this new Photinia are stable and reproduced true to type in successive generations of asexual reproduction.

SUMMARY OF THE INVENTION

The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘Parsub’. These characteristics in combination distinguish ‘Parsub’ as a new and distinct cultivar:

• • 1. An upright plant habit.
  • 2. Greyed-purple stem color.
  • 3. Leaves that are greyed-orange when developing and green when fully expanded.
  • 4. Medium undulating leaves with serrulate margins.
  • 5. An oblanceolate leaf shape.

The closest comparison cultivar is the female parent ‘Red Robin’. Plants of the new Photinia were compared to plants of the Photinia cultivar ‘Red Robin’. In side-by-side comparisons conducted in Kulnurra, Australia, plants of the new Photinia differed from plants of the cultivar ‘Red Robin’ in the following characteristics:

• • 1. Plants of the new Photinia had more lateral branches than ‘Red Robin’.
  • 2. Plants of the new Photinia had a more upright habit than ‘Red Robin’.
  • 3. Plants of the new Photinia have shorter leaves than ‘Red Robin’.
  • 4. Plants of the new Photinia have stronger undulation of leaf margins.
  • 5. Plants of the new Photinia have darker young leaves than ‘Red Robin’.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying photographs illustrate the distinguishing traits of Photinia ‘Parsub’.

The photograph at the top of the sheet is a side view of a 2 year old plant.

The photograph at the bottom of the sheet is a close-up view of several leaves.

The photographs were taken using conventional techniques and although colors may appear different from actual colors due to light reflectance it is as accurate as possible by conventional photographic techniques.

DETAILED BOTANICAL DESCRIPTION

The new Photinia has not been observed under all possible environmental conditions. The phenotype may vary somewhat with variations in environment such as temperature and light intensity, without, however, any variance in genotype.

The following is a detailed description of the new Photinia cultivar named ‘Parsub’. Data was collected Kulnura, NSW Australia from plants raised in 200 mm. pots in commercial grade, soil-less potting mix in full sun. The plants were grown on their own roots from cuttings. In the following description, color references are made to The Royal Horticultural Society Colour Chart, 1995 Edition.

• Botanical classification: Photinia glabra cultivar ‘Parsub’.
• Parentage:
  • • Female parent.—Photinia ‘Red Robin’.
    • Male parent.—Unknown.
    • Propagation.—Terminal cuttings.
    • Time to initiate roots.—About 60 days at 20 degrees Centigrade.
    • Time to produce a rooted young plant.—About 120 days at 20 degrees Centigrade.
    • Root description.—Medium thickness; dark brown in color.
• Plant description:
  • • Plant form.—Upright perennial evergreen shrub.
    • Growth habit.—Moderately vigorous. Dense and bushy growth habit.
    • Plant height.—3 m.
    • Plant width.—About 2 m.
    • Lateral branches.—Quantity per plant: About 8. Diameter: About 3-4 mm. Internode length: About 2.5 cm. Strength: Strong. Texture: Smooth. Color: 183B to 183C.
• Foliage description: Stems: Color Greyed-Purple 183B to 183C; diameter 5 mm. Leaves: alternate, single, and generally symmetrical. Length: About 87 mm. Width: About 47 mm. Shape: oblong. Apex: apiculate. Base: Obtuse-cuneate. Margin: Serrulate; lightly undulating. Texture: Glabrous; leathery. Venation pattern: Strong, Pinnate. Color: Immature leaves, upper surface: 181A; lower surface: 185C. Mature leaves, upper surface: 135B; lower surface 143C. Petiole: Length: About 7.1 mm. Diameter: About 2-3 mm. Stipules: Quantity per leaf: Two. Arrangement/appearance: One stipule on either side of the base of the petiole; scale-like. Length: About 7.2 mm. Color: Upper surface: 147A.
• Flower description: Flowers have not been observed.
• Seed description: Seeds have not been observed.
• Disease/pest resistance: In comparison to other known Photinia cultivars, plants of the new Photinia have been observed to be relatively more resistant to pathogens and pests common to Photinia.
• Temperature tolerance: Plants of the new Photinia have been observed to tolerate temperatures ranging from −15 to 43. degree. C.

Claims

1. A new and distinct variety of Photinia plant named ‘Parsub’, as described and illustrated.