Nemesia plant named ‘Intraigold’

Abstract

A new and distinct cultivar of Nemesia plant named ‘Intraigold’, characterized by its upright and outwardly spreading plant habit; freely branching habit; dense and bushy appearance; early flowering habit; numerous large golden yellow-colored flowers; and long flowering period.

Description

Botanical designation: Nemesia hybrid.

Cultivar denomination: ‘Intraigold’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Nemesia plant, botanically known as Nemesia hybrid and referred to by the name ‘Intraigold’.

The new Nemesia is a product of a planned breeding program conducted by the Inventors in Gensingen, Germany. The objective of the program is to create new strong Nemesia cultivars with numerous flowers and unique flower colors.

The new Nemesia originated from a cross-pollination made by the Inventors of an unnamed Nemesia strumosa selection, not patented, as the female, or seed, parent with an unnamed Nemesia fructicans selection, not patented during the summer of 2001. The cultivar ‘Intraigold’ was discovered and selected by the Inventors as a flowering plant within the progeny of the stated cross-pollination in a controlled environment in Gensingen, Germany during the summer of 2002.

Asexual reproduction of the new Nemesia by terminal cuttings in a controlled environment in Gensingen, Germany since June, 2002, has shown that the unique features of this new Nemesia are stable and are reproduced true to type in successive generations.

SUMMARY OF THE INVENTION

The new Nemesia has 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 in genotype.

The following characteristics have been repeatedly observed and are determined to be basic characteristics of ‘Intraigold’ and distinguish ‘Intraigold’ as a new and distinct cultivar:

• • 1. Upright and outwardly spreading plant habit.
  • 2. Freely branching habit; dense and bushy appearance.
  • 3. Early flowering habit.
  • 4. Numerous large golden yellow-colored flowers.
  • 5. Long flowering period.

Plants of the new Nemesia differ primarily from plants of the female parent selection in the following characteristics:

• • 1. Plants of the new Nemesia are more outwardly spreading than and not as upright as plants of the female parent selection.
  • 2. Plants of the new Nemesia flower for a longer period of time than plants of the female parent selection.

Plants of the new Nemesia differ primarily from plants of the male parent selection in the following characteristics:

• • 1. Plants of the new Nemesia have larger flowers than plants of the male parent selection.
  • 2. Plants of the new Nemesia and the male parent selection differ in flower color as plants of the male parent selection have white to soft pink-colored flowers.

Plants of the new Nemesia can be compared to plants of the cultivar Intraiyel, disclosed in a U.S. Plant patent application filed concurrently. In side-by-side comparisons conducted in Gensingen, Germany, plants of the new Nemesia differed primarily from plants of the cultivar Intraiyel in flower color as plants of the new Nemesia had darker yellow-colored flowers than plants of the cultivar Intraiyel.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

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

The photograph at the top of the sheet comprises a side perspective view of a typical plant of ‘Intraigold’ grown in a container.

The photographs at the bottom of the sheet comprises close-up views of typical flowers of ‘Intraigold’.

DETAILED BOTANICAL DESCRIPTION

The aforementioned photographs and following observations and averaged measurements describe plants grown in Bonsall, Calif., in an outdoor nursery during the late summer with day temperatures ranging from 18° C. to 35° C. and night temperatures ranging from 16° C. to 21° C. After rooting, plants were grown for ten weeks in 15-cm containers with three plants per container. 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: Nemesia hybrid cultivar ‘Intraigold’.
• Parentage:
  • • Female parent.—Unnamed Nemesia strumosa selection, not patented.
    • Male parent.—Unnamed Nemesia fructicans selection, not patented.
• Propagation:
  • • Type.—By vegetative cuttings.
    • Time to initiate roots.—About 10 to 14 days at 20° C.
    • Time to develop roots.—About two to three weeks at 20° C.
    • Root description.—Fine; white in color.
    • Rooting habit.—Freely branching.
• Plant description:
  • • General appearance.—Upright and outwardly spreading plant habit; broad inverted triangle. Freely branching, typically about 15 primary lateral branches; numerous secondary and tertiary lateral branches. Vigorous growth habit.
    • Plant height.—About 22 cm.
    • Plant diameter or spread.—About 45 cm.
    • Lateral branches.—Appearance: Square in cross-section with longitudinal ridges. Length: About 23 cm. Diameter: About 3 mm. Internode length: About 1.7 cm. Strength: Strong. Texture: Smooth, glabrous. Color: 146A.
    • Foliage description.—Arrangement: Opposite, simple. Shape: Lanceolate. Apex: Acute. Base: Attenuate, clasping. Length: About 4.5 cm. Width: About 1.7 cm. Margin: Broadly serrate. Texture, upper and lower surfaces: Smooth, glabrous. Venation pattern: Pinnate, arcuate. Petiole length: About 8 mm. Petiole diameter: About 6 mm. Petiole texture, upper and lower surfaces: Smooth, glabrous. Color: Developing leaves, upper surface: 147B. Developing leaves, lower surface: 147C. Fully expanded leaves, upper surface: 147A. Fully expanded leaves, lower surface: 147B. Venation, upper surface: 144A. Venation, lower surface: 144B. Petiole, upper and lower surfaces: 144B.
• Flowering description:
  • • Arrangement/appearance.—Zygomorphic solitary flowers arranged on terminal racemes; flowering acropetally towards apex. Flowers bilabiate with nectar spur. Flowers face upright and outward. Flowers last about five days on the plant. Flowers not persistent.
    • Natural flowering season.—Long flowering period; natural flowering season is spring to fall; flowering continuous during this period.
    • Quantity of flowers.—Freely flowering with about 16 flowers and flower buds per inflorescence.
    • Fragrance.—None detected.
    • Inflorescence length.—About 11 cm.
    • Inflorescence diameter.—About 4 cm by 5 cm.
    • Flower diameter.—About 1.8 cm by 2.2 cm.
    • Flower depth, including nectar spur.—About 1.5 cm.
    • Flower buds.—Shape: Ovoid with spur. Length including spur: About 1 cm. Diameter: About 5 mm. Color: 8D.
    • Petals.—Arrangement/shape: Five petals in a single whorl. Four upper petals are fused at base to form an upright lobed and arched banner lip; lower petal modified into a larger lip with nectar spur and central protuberance which serves as pollinator nectar guide and landing platform. Apex: Rounded. Margin: Entire. Length: Upper lip petals: About 6 to 7 mm. Lower lip petal: About 1.2 cm. Width: Upper lip petals: About 4 to 6 mm. Lower lip petal: About 1.1 cm. Texture, upper and lower surfaces: Smooth, velvety. Color: When opening, upper lip petals, upper surface: 13A. When opening, lower lip petal, upper surface: 17A. When opening, lower surface: 13D; stripes, 70B. Fully opened, upper lip petals, upper surface: Towards the margins, 10A; center, 13B; towards the base, 2D, with stripes, 103C. Fully opened, lower lip petal, upper surface: 14B. Fully opened, lower surface: 12D; faint stripes, 70B. Nectar guide: 15A. Nectar spur: 21D.
    • Sepals.—Quantity: Five-parted, star-shaped calyx. Shape: Elliptic. Apex: Acute. Base: Fused. Margin: Entire. Length: About 3 mm. Diameter: About 1 mm. Texture, upper and lower surfaces: Pubescent. Color, upper and lower surfaces: 147B.
    • Peduncle.—Length: About 3.5 cm. Diameter: About 2.5 mm. Strength: Strong. Angle: Upright to 45° from the stem. Color: 146A.
    • Pedicel.—Length: About 1.2 cm. Diameter: About 1 mm. Strength: Strong. Angle: About 45° to 60° from the stem. Color: 146B.
    • Androecium.—Stamen number: Four per flower. Anther shape: Oval. Anther length: Less than 1 mm. Anther color: 12B. Amount of pollen: Scarce. Pollen color: 12B.
    • Gynoecium.—Pistil number: One per flower. Pistil length: About 2 mm. Style length: Less than 1 mm. Style color: 145D. Stigma shape: Rounded. Stigma color: 145D. Ovary color: 145A.
    • Seed/fruit.—Seed and fruit production has not been observed on plants of the new Nemesia.
• Disease/pest resistance: Plants of the new Nemesia have not been observed to be resistant to pathogens or pests common to Nemesias.
• Temperature tolerance: Plants of the new Nemesia have been observed to be tolerant to temperatures ranging from 2° to 35° C.

Claims

1. A new and distinct cultivar of Nemesia plant named ‘Intraigold’, as illustrated and described.