Adenium plant named ‘GEM-113-1’

Abstract

A new and distinct Adenium plant named ‘GEM-113-1’ particularly distinguished by having very large flowers averaging 12.0 cm in diameter and averaging 9.0 cm from the petal tips to the base of the floral tube, flowers held erect on the stems when open, a third row of petals expressed in the flowers forming a triple flower, a very large floral tube averaging 3.0 cm in width and 4.0 cm in length, thick stems providing a vigorous and strong appearing growth habit, and large, very dark glossy green leaves, is disclosed.

Claims

1. A new and distinct variety of Adenium plant named ‘GEM-113-1’, substantially as illustrated and described herein.

Description

DESCRIPTION OF THE PHOTOGRAPHS

(1) This new Adenium is illustrated by the accompanying photographs which show the overall plant habit including flowers and foliage of the plant. The colors shown are as true as can be reasonably obtained by conventional photographic procedures. The photographs are of 10-month old plants grown in a non-publically accessible commercial greenhouse in Tavares, Fla. in April 2017. Colors in the photographs may differ slightly from the color values cited in the botanical description which accurately describes the colors of the new variety.

(2) FIG. 1 shows a view of the overall plant habit, including flowers and foliage.

(3) FIG. 2 shows a close-up of a mature flower, branches and leaves.

DESCRIPTION OF THE NEW VARIETY

(4) In the following description, color references are made to The Royal Horticultural Society Colour Chart, 2001 Edition, except where general terms of ordinary dictionary significance are used.

(5) The following observations and measurements describe plants grown in 25 cm containers on raised benches under a clear polyethylene-covered greenhouse in Tavares, Fla. Detailed descriptions were taken from approximately 10-month old plants grown from single apical stem cuttings and pinched one time after rooting. Plants were grown in temperatures ranging from approximately 2° C. to 40° C., and with 20% to 30% shade under a natural photoperiod in Tavares, Fla.

DETAILED BOTANICAL DESCRIPTION

(6) Classification: Family.—Apocynaceae. Botanical.—Adenium obesum. Common.—Desert Rose. Denomination.—‘GEM-113-1’. Parentage: Female or seed parent.—Adenium obesum plant ‘GEM-97-1’ (unpatented). Male or pollen parent.—Adenium obesum plant ‘GEM-71-2’ (unpatented). Propagation: Type.—Apical stem cuttings. Time to initiate roots, summer.—Approximately 21 to 28 days at 20° C. to 30° C. Time to produce a rooted young plant, summer.—Approximately 42 days at 20° C. to 30° C. Root description: Abundant, thick and well branched, yellow-white in color, RHS 158A and RHS 158B. Plant description: Growth habit.—Vigorous, strong upright growth, suitable for production as a flowering potted plant in 15 cm containers or larger. Caudex.—Not observed on plants grown from apical stem cuttings. Height.—52.0 cm after 10 months of growth. Width.—40.0 cm after 10 months of growth. Growth rate.—Relatively fast, reaching 52.0 cm after 10 months of growth. Stems.—Diameter of main stem: 3.0 cm. Color: Yellow-green, RHS 148A and RHS 148B. Texture: Smooth. Lateral branches: Quantity: Average 4 on a 10-month old plant pinched one time after rooting. Length: 28.0 cm. Diameter: 1.0 cm to 1.2 cm when measured 10.0 cm below the growing tip. Internodes: Approximately 1.0 cm in length between leaves. Foliage description: Leaf arrangement.—Alternate. Leaf count.—Approximately 10 leaves per 10.0 cm of stem. Average mature leaf size.—Length: 7.0 cm. Width: 5.0 cm. Mature leaf shape.—Obovate with a mucronate tip measuring 2.0 mm in length. Leaf margin.—Entire. Leaf base.—Leaf base forms a cuneate attachment to the stem. Upper leaf surface.—Smooth in texture, very glossy. Lower leaf surface.—Matte, slightly pubescent. Leaf color.—Mature leaf: Upper surface is green, RHS 139A, lower surface is yellow-green, RHS 146A and RHS 146B. Immature leaf: Upper surface is glossy and lighter green than mature leaves, RHS 137A and RHS 137B, lower surface is yellow-green, RHS 146B. Leaf venation.—Pinnate. Petiole.—Not observed, sessile. Inflorescence: Season.—Flowers observed year-round in Tavares, Fla., with a larger quantity of flowers observed during the spring, summer and fall months when day and night temperatures are warm. Type and habit.—Axillary compound cyme. Flowers: Longevity.—5 to 10 days. Quantity of buds.—5 to 6 per stem. Quantity of open flowers.—2 to 5 per 10-month old plant. Length.—9.0 cm when measured from the petal tip to the base of the floral tube. Diameter.—Average 12.0 cm. Petals.—Quantity: 15 per flower in a triple configuration. Length: 9.0 cm. Petaloids: None observed. Texture: Smooth, slightly velvety. Margins: Wavy. Color: Edges are red, RHS 46A and RHS 46B, blending to red-purple, RHS 65A, towards the center, and then blending to white, RHS 155B, near the floral tube throat; as flowers age, outer petal surfaces fade to red, RHS 54A and RHS 54B; the petal's inner surface colors do not fade with age. Nectar guides.—Quantity: 3, present only on the outer whorl of petals, not present on the inner petals. Color: Red-purple, RHS 57B and RHS 57C. Floral tube.—Length: 4.0 cm. Width: Wide, averaging 3.0 cm. Color: Yellow, RHS 2B and RHS 2C. Mature buds.—Shape: Oblanceolate. Length: 7.0 cm. Diameter: 2.0 cm. Color: Lower section: Yellow, RHS 2B and RHS 2C. Tip: Red, RHS 46A. Peduncle.—Length: 0.5 cm. Diameter: 0.6 cm. Color: Yellow-green, RHS 146A and RHS 146B. Orientation: Outward. Strength: Very strong. Pedicel.—Length: 1.0 cm. Diameter: 0.5 cm. Color: Yellow-green, RHS 146A and RHS 146B. Sepals.—Quantity per flower: Approximately 5. Shape: Lanceolate. Length: 1.5 cm. Width: 0.5 cm. Color: Close to yellow-green, RHS 146B. Margins: Entire. Texture: Smooth. Reproductive organs: Stigma shape.—Club like. Style length.—2.0 cm. Style color.—Yellow-white, RHS 158B. Ovary color.—Yellow-white, RHS 158C. Stamens.—Quantity: 5. Anthers: Shape: Linear. Length: 1.0 cm. Color: Yellow-white, RHS 158B, and blushed with red-purple, RHS 69A. Anther tails: Length: Average 4.0 cm. Color: Red-purple, RHS 69A with darker tips colored red-purple, RHS 67B. Filament length: 1.5 cm. Pollen: None observed. Fruit and seed set: None observed. Disease and pest resistance: Normal for this species. Drought tolerance: Normal for this species.

COMPARISON WITH PARENTAL VARIETIES

(7) ‘GEM-113-1’ differs from the female parent plant ‘GEM-97-1’ (unpatented) in that ‘GEM-113-1’ produces triple flowers, whereas ‘GEM-97-1’ produces double flowers. Additionally, ‘GEM-113-1’ has dark red colored flowers, whereas ‘GEM-97-1’ has white colored flowers. Furthermore, the stems and leaves of ‘GEM-113-1’ are larger and thicker than the stems and leaves of ‘GEM-97-1’.

(8) ‘GEM-113-1’ differs from the male parent plant ‘GEM-71-2’ (unpatented) in that ‘GEM-113-1’ has dark red colored flowers, whereas ‘GEM-71-2’ has light reddish-pink colored flowers. Additionally, ‘GEM-113-1’ produces triple flowers, whereas ‘GEM-71-2’ produces single flowers. Furthermore, the stems and leaves of ‘GEM-113-1’ are larger and thicker than the stems and leaves of ‘GEM-71-2’.

COMPARISON WITH KNOWN CULTIVARS

(9) ‘GEM-113-1’ differs from the commercial variety ‘LEELADE204’ (U.S. Plant Pat. No. 24,833) in that ‘GEM-113-1’ produces triple red flowers, whereas ‘LEELADE204’ produces double red flowers. Additionally, mature leaves of ‘GEM-113-1’ measure 7.0 cm in length and 5.0 cm in width, whereas mature leaves of ‘LEELADE204’ measure 9.2 cm in length and 3.9 cm in width. Furthermore, flowers of ‘GEM-113-1’ measure 9.0 cm in length and 12.0 cm in diameter, whereas flowers of ‘LEELADE204’ measure 8.1 cm in length and 4.1 cm in diameter.