<i>Coreopsis </i>plant named ‘MVNC1906’

Abstract

A new cultivar of hybrid Coreopsis plant named ‘MVNC1906’ that is characterized by its neat and compact (50 cm in height) plant habit with stems that are similar in length, its long flowering period from late spring to early autumn in The Netherlands (commences early), its inflorescences with ray florets that are light yellow in color with dark red centers, its abundance of inflorescences that are large in size, its resistance to powdery mildew, its high tolerance to heat and humidity, and its healthy foliage that maintains its bright green appearance.

Claims

1. A new and distinct cultivar of Coreopsis plant named ‘MVNC1906’ as herein illustrated and described.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The accompanying color photographs illustrate the overall appearance and distinct characteristics of the new Coreopsis. The photographs were taken of a 1-year-old plant of ‘MVNC1906’ as grown outdoors in a 17 cm container in Warmond, The Netherlands.

(2) The photograph in FIG. 1 provides a view of the plant habit of ‘MVNC1906’ in bloom.

(3) The photograph in FIG. 2 provides a close-up view of the inflorescences of ‘MVNC1906’.

(4) The colors in the photographs are as close as possible with the photographic and printing technology utilized and the color values cited in the detailed botanical description accurately describe the colors of the new Coreopsis.

DETAILED BOTANICAL DESCRIPTION

(5) The following is a detailed description of 1-year-old plants of ‘MVNC1906’ as grown outdoors in 17 cm containers in Warmond, The Netherlands. The phenotype of the new cultivar may vary with variations in environmental, climatic, and cultural conditions, as it has not been tested under all possible environmental conditions. The color determination is in accordance with The 2015 Colour Chart of The Royal Horticultural Society, London, England, except where general color terms of ordinary dictionary significance are used. General description: Blooming period.—Blooms from late spring to early autumn in The Netherlands. Plant type.—Herbaceous perennial. Plant habit.—Clump-forming, compact, bushy, upright leafy flowering stems that are similar in length with inflorescences held above the foliage. Height and spread.—Reaches an average of 50 cm in height and 54.4 cm in width. Cold hardiness.—At least to U.S.D.A Zone 4. Diseases and pests.—Resistance to powdery mildew (Podosphaera macularis), no susceptibility or resistance to pests has been observed. Root description.—Fibrous and fine, NN155A in color. Propagation.—Root cuttings and stem cuttings. Root development.—An average of 10 days for root initiation, an average of 20 weeks to produce a marketable plant. Growth rate.—Moderate to highly vigorous. Branch description: Branch shape.—Rounded, strongly axially ribbed. Branch color.—144A to 144B. Branch size.—Main and secondary stems; an average of 15.5 cm in length and 4 mm in width. Branch strength.—Very strong. Branch surface.—Glabrous. Branch aspect.—Average of 30° to vertical. Branching quantity.—An average of 28 main branches, 3 secondary branches per main stem. Internode length.—An average of 8.2 cm. Foliage description: Leaf division.—Simple, 50% of leaves trifoliate. Leaf and leaflet margins.—Entire. Leaf size.—7.9 cm in length, 1.6 cm in width, lateral leaflets of trifoliate leaves; 3 cm in length, 5 mm in width. Leaf and leaflet shape.—Lanceolate, 50% of leaves trifoliate. Leaf and leaflet base.—Long attenuate. Leaf and leaflet apex.—Bluntly acute to obtuse. Leaf and leaflet venation.—Pinnate, both surfaces 144A. Leaf attachment.—Petiolate. Leaf arrangement.—Opposite. Leaf surface.—Upper surface matte, smooth, slightly leathery, lower surface slightly glossy, smooth, slightly leathery, margins are sparsely pubescent with short thin hairs; 0.5 mm in length, too small to measure color. Leaf color.—Young upper surface 143A to 146B, young lower surface 146B, mature upper surface 137B, mature lower surface 147B. Petioles.—Average of 1.7 cm in length, 2.5 mm in width, v-shaped, both surfaces smooth and glabrous, both surfaces 144A in color, margins sparsely pubescent with short thin hairs an average of 1 mm in length and too small to measure color. Flower description: Inflorescence type.—Terminal capitulum consisting of ray florets and disc florets. Lastingness of inflorescence.—Average of 10 days. Fragrance.—Faint, pleasant. Quantity of inflorescences.—1 per lateral stem, 110 per plant. Inflorescence size.—2.3 cm in height, 6.2 cm in diameter, disc diameter 1.3 cm. Inflorescence buds.—Broad obovate in shape, an average of 8 mm in depth and 9 mm in diameter, dull surface; color; 152A, base 152B. Peduncle.—Axially ribbed in shape, moderately strong, held in a vertical angle, an average of 16.3 cm in length and 2 mm in diameter, 144A to 144B in color, smooth, slightly glossy and glabrous surface. Phyllaries (involucral bracts): Phyllary number.—2 rows; total of 16, upper row 8, lower row 8. Phyllary size.—Upper phyllaries; an average of 1 cm in length and 6 mm in width, lower phyllaries; an average of 8 mm in length and 2.5 mm in width. Phyllary color.—Upper phyllaries upper surface; 152D, margins 154B, upper phyllaries lower surface; 143B, upper ⅔rd 152C, margins 154B, lower phyllaries upper surface; 144A, lower phyllaries lower surface; 143A. Phyllary texture.—Both surfaces smooth, glabrous, moderately glossy, margins sparsely to moderately covered with pubescent hairs, average of 0.2 mm in length and too small to measure color. Phyllary apex.—Acute. Phyllary base.—Cuneate. Phyllary shape.—Upper phyllaries; ovate, lower phyllaries; cuneate. Ray florets: Number.—9, (varying between 8 and 10). Shape.—Obovate to near oblong. Size.—An average of 3.2 cm in length and 1.7 cm in width. Apex.—Cleft into 3 lobes, tip of central lobe emarginate to cleft, tips of lateral lobes bluntly acute. Base.—Rounded. Margins.—Entire. Aspect.—Rotate. Texture.—Upper surface; matte, glabrous, velvety, slightly to moderately carinate, lower surface; very slightly glossy, glabrous, non-velvety. Color.—When opening upper surface; 3A, basal spot between N186C and 202A, when opening lower surface; 3A and 4A, basal spot N200B, when fully open upper surface; 3C, blotched towards the top 5A to 5B, basal spot 187A, fully open lower surface; 5A, blotched towards the top 7A. Disc florets (male and female): Number.—An average of 100. Shape.—Tubular. Base.—Lower 85% fused. Size.—About 8 mm in length and 2 mm in width. Apex.—Acute. Surface.—Glabrous, moderately glossy. Margins.—Entire. Color.—When opening upper and lower surface; 21A, lower half 16C, fully open upper and lower surface; 17A to 17B, mid-section 16B, base 16D. Receptacle.—Flattened, average of 1.5 mm in height, 4 mm in diameter, 150C in color. Receptacle spines.—Linear, 100 per disc floret, soft, narrow acute apex, narrow cuneate base, surface glabrous, moderately glossy, color; apex 13B, mid-section 150D, base 198C. Reproductive organs: Gynoecium.—1 Pistil; an average of 7 mm in length, style; 6.5 mm in length, 154C in color, stigma; unequal decurrent, 15A in color, ovary; 156C and 157A in color. Androecium.—5 stamens, filament; 3 mm in length, 166A in color, anther; linear, 2 mm in length, 14D in color, pollen; moderate in quantity and 15A in color. Seed.—Seed development has not been observed.