Diascia plant named ‘Diasttralav’

Abstract

A new and distinct cultivar of Diascia plant named ‘Diasttralav,’ particularly distinguished by its lavender flowers and trailing habit.

Description

Latin name of the genus and species of the plant claimed: Diascia barberae.

Varietal denomination: ‘Diasttralav’.

BACKGROUND OF THE NEW PLANT

The present invention comprises a new distinct cultivar of Diascia, botanically known as Diascia barberae.

The new cultivar originated from a cross-pollination and is propagated from cuttings resulting from the cross of ‘C0007-2’ and ‘C0017-3’. ‘C0007-2’ is a lavender flowering Diascia. ‘C0007-2’ is not commercially available and is not known by any synonyms. ‘C0017-3’ is a deep red flowering Diascia. ‘C0017-3’ is not commercially available and is not known by any synonyms. Neither ‘C0007-2’ nor ‘C0017-3’ has been patented.

As a result of this cross the present cultivar was created in 2001 in Enkhuizen, Netherlands and has been repeatedly asexually reproduced by cuttings in Enkhuizen, The Netherlands and Sarrians, France over a three-year period. It has been found to retain its distinctive characteristics through successive propagations. The new variety is stable and reproduces true to type in successive generations of asexual reproduction.

This new Diascia plant is an annual in most climatical zones in the US, only in zones, 7, 8, 9 and 10 it is a perennial plant.

DESCRIPTION OF THE DRAWING

This new Diascia plant is illustrated by the accompanying photographic drawing which shows blooms, buds and foliage of the plant in full color, the color shown being as true as can be reasonably obtained by conventional photographic procedures.

DESCRIPTION OF THE NEW CULTIVAR

The following detailed descriptions set forth the distinctive characteristics of this new Diascia. The data which defines these characteristics were collected from asexual reproductions carried out in Enkhuizen, Netherlands. The plant history was taken on 10 week old plants, cultured in 10.5 cm containers, and blossomed under natural light in a greenhouse.

Color readings were taken in the greenhouse under ambient light. Color references are primarily to The R.H.S. Colour Chart of The Royal Horticultural Society of London.

Differences between the new cultivar ‘Diasttralav,’
its parents and a similar cultivar
	‘Diasttralav’	‘C0007-2’	‘C0017-3’	‘Diastu’
Flower color	Lavender	Lavender	Deep red	Deep lavender
Plant habit	Vigorous, not	Compact	Vigorous,	Compact
	compact		not compact
Plant spread	45 cm	20 cm	50 cm	25 cm

‘Diastu’ has a commercial name ‘Flying Colors trailing Antique Rose’ and is patented as U.S. Plant Pat. No. 13,949.

• The plant:
  • • Classification.—Botanical: Diascia barberae.
    • Parentage.—Female parent: A seedling named ‘C0007-2’ is one of our seedlings from our C-generation of plants bred in 1997. Pollen parent: A seedling named ‘C0017-3’ is one of our seedlings from our C-generation of plants bred in 1997.
    • Growth habit.—Trailing.
    • Plant height.—12-18 cm.
    • Spreading area of plant.—40-45 cm.
    • Growth rate.—Vigorous.
    • Strength.—Very good.
    • Branching character.—Freely branching and lateral branching at every node.
    • Quantity of branches.—70-100 branches per plant.
• The stem:
  • • Diameter.—1-1.5 mm.
    • Shape.—Round.
    • Color.—141C.
    • Length.—25-35 cm.
    • Anthocyan pigmentation.—Absent.
    • Length of internode.—Vegetative growth: 10-15 mm. Generative growth: 15-30 mm.
    • Pubescence.—Not pubescent.
• The foliage:
  • • Phyllotaxis.—Opposite, decussate.
    • Number of leaves per lateral stem.—30-70.
    • Shape of blade.—Cordate.
    • Texture.—Upper side: Smooth. Lower side: Smooth.
    • Attachment to leaf.—Petiolate.
    • Venation.—Pinnate.
    • Color of veins.—Upper side: 138B. Lower side: 138C.
    • Leaf margin.—Crenate.
    • Leaf base.—Cordate.
    • Leaf apex.—Rounded.
    • Length.—16-23 mm.
    • Width.—14-18 mm.
    • Depth of incision.—Less than 1 mm.
    • Color.—Upper side: 137A. Lower side: 138C.
    • Pubescence.—No pubescence.
    • Length of petiole.—2-3 mm.
    • Diameter of petiole.—1-2 mm.
    • Color of petiole.—138B.
    • Petiole surface texture.—Smooth.
• The bud:
  • • Peduncle length.—10-24 mm, depending on season.
    • Peduncle diameter.—1-2 mm.
    • Peduncle shape.—Long and threadlike.
    • Peduncle color.—137B.
    • Size of the bud.—Length: 3 mm. Diameter: 3 mm.
    • Shape of the bud.—Oval.
    • Color of the bud.—157A.
    • Number of buds per lateral branch.—12-36.
    • Sepals.—Color both surfaces: 137B. Number: 5, parted. Length: 1-2 mm. Width: 1-2 mm. Shape: Elliptic, apex acute, base truncate. Margin: Entire. Texture: Smooth.
    • Bracts.—Color upper side: 141A. Color lower side: 141B. Arrangement: Sessile. Number: One underneath every pedicel. Length: 1-2 mm. Width: 1-2 mm. Apex: Acute. Base: Subcordate. Margin: Entire. Texture: Smooth.
    • Pedicels.—Color: 141C. Shape: Threadlike. Length: 4-8 mm. Diameter: Less than 1 mm.
• The flower:
  • • Inflorescence length.—2-4 cm.
    • Inflorescence diameter.—1-3 cm.
    • Flower width.—16-20 mm.
    • Flower length.—18-24 mm.
    • Flower depth.—6-8 mm.
    • Flower aspect.—Tipped upward and outward.
    • Borne.—Solitary.
    • Form.—Zygomorphic, five lobed, double nectar spur.
    • Cluster.—Raceme.
    • Color.—Upper surface: N74C, veined N74B. On the two upper banner petals there is a small yellow (color 9B) indentation just above the reproductive organs. Lower surface: Uniform 73B, towards edge 73A. On the two upper banner petals there is a small light yellow (color 9C) indentation at the base.
    • Overlapping of the petals.—Separate.
    • Number of petals.—Five: two upper banner petals, two lateral petals and one larger basal lip petal.
    • Shape of the banner petals.—Apex rounded, base fused.
    • Shape of the lateral petals.—Apex rounded, base fused, lower surface modified into nectar spurs.
    • Shape of the basal lip petal.—Apex truncate, base fused.
    • Petal margin of all petals.—Entire.
    • Petal surface texture.—Smooth.
    • Size of the banner petals.—Length: 5-7 mm. Width: 6-8 mm.
    • Size of the lateral petals.—Length: 4-6 mm. Width: 5-7 mm.
    • Size of the basal lip petal.—Length: 10-15 mm. Width: 12-15 mm.
    • Spur.—Length: 7-9 mm. Diameter: 1-2 mm at petal attachment. Color: N74B.
    • Number of flowers per raceme.—30-46.
    • Fragrance.—No fragrance.
    • Lastingness of the bloom.—New florets continue to open in one raceme over a period of 18 days.
    • Lastingness of one flower.—About 4 days depending on temperature.
    • Flowering season.—Depending on climate from March until November.
• The reproductive organs:
  • • Androecium.—Stamen number: Three. Anther shape: Two-lobed. Anther size: Less than 1 mm. Anther color: Yellow 7B. Amount of pollen: Very much pollen. Pollen color: Yellow 7C.
    • Gynoecium.—Pistil number: 1. Stigma shape: Rounded. Pistil length: 3-4 mm. Style length: 1-2 mm. Style color: Green 144C. Stigma color: Green white 157C. Ovary color: Green 143D.
• The fruit and the seed:
  • • Seed set.—No fruit development nor seed set has been observed to date.
• The roots:
  • • Type of roots.—Fibrous.
    • Rooting habit.—Fine and freely branching.
    • Color.—Whitish, N155A.
    • Time to initiate roots.—Approximately 9 days at a temperature of 21 degrees Centigrade is needed to produce rooted cuttings.
• Physiological and ecological characteristics:
  • • Disease/pest resistance.—Plants of the new Diascia have not been noted to be resistant to pathogens or pests common to Diascia.
    • Temperature tolerance.—Plants of the new Diascia have been observed to tolerate temperatures from 0 to 35 degrees C.

Claims

1. A new and distinct cultivar of Diascia plant named ‘Diasttralav’, as substantially illustrated and described herein.