<i>Sedum sexangulare </i>plant named ‘Yellowstone’

Abstract

A new, distinct Sedum sexangulare plant as illustrated and described, characterized by larger foliage and golden yellow foliage color in early summer, compared to the smaller chartreuse foliage in early summer of the parent plant.

Claims

1. A new, distinct Sedum sexangulare plant as illustrated and described, characterized by larger foliage and golden yellow foliage color in early summer, compared to the smaller chartreuse foliage in early summer of the parent plant.

Description

DESCRIPTION OF PHOTOGRAPHS

(1) Plants pictured in the drawing were grown for one year.

(2) FIG. 1. Close up of a flowering plant in July.

(3) FIG. 2. A picture of container plants in June.

DETAILED BOTANICAL DESCRIPTION

(4) In the following description, color references are made to The Royal Horticultural Society Colour Chart (2001). Plants used for the description were grown for one year. Measurements and numerical values represent averages of typical plants. Botanical classification: Sedum sexangulare cultivar Yellowstone. Parentage: An open pollinated seedling of Sedum sexangulare ‘Golddigger’. Propagation: Vegetative division and cutting propagation. Plant description: Typical and observed plant habit of the new Sedum sexangulare is basal clumps, reaching 30 cm wide with upright 10-11 cm tall stems topped by yellow flowers in July. Plant height.—Average 10-11 cm. Plant width.—33 cm. Stem color.—144 C in spring, summer, and fall. Stem shape.—Both typical and observed — round. Stem texture.—Glabrous. Stem length.—10 cm. Stem diameter.—1-2 mm. Lateral branches.—3-5 cm. Internode length.—1-2 cm. Foliage: Type.—Semi-evergreen. Shape.—Acicular. Petiole.—None. Length.—8 mm. Width.—1 mm. Thickness.—1-2 mm. Margin.—Entire. Leaf apex, typical and observed.—Acute. Leaf bases, typical and observed.—Sessile. Texture.—Smooth. Leaf arrangement.—Whorled, crowded except at the base of the stems. Leaf venation pattern.—None noticed. Leaf vein color.—None noticed. Adaxial leaf description.—Color is 144 A and B in late summer to winter and 1 A and B in spring. Abaxial leaf description.—Color is 144 A and B in late summer to winter and 1 A and B in spring. Fall foliage color.—None noticed. Flower: Petal count.—5. Petal shape.—Lanceolate. Adaxial petal color.—12 A. Abaxial petal color.—12 A. Petal apex shape.—Acuminate. Petal base.—2 mm wide. Petal length.—5 mm. Petal width.—2 mm. Petal texture.—Typical and observed — glabrous. Petal margin, typical and observed.—Entire. Petal bases, typical and observed.—Obovate. Inflorescence type.—Panicle on basal flowering stems. Panicle color.—12 A. Individual flower size.—12 mm diameter, 5-6 mm depth. Flower shape.—Stellate. Inflorescence length.—5-6 cm and width — 6 cm across, 2 cm tall. Flower number.—Approximately 35 per stem, 1400 plus per plant. Bloom period and duration.—Mid-June to Mid-July. Flower longevity and duration on the plant.—Approximately 3 weeks. Bud shape, typical and observed.—Aristate. Bud length, typical and observed.—6 mm. Bud diameter, typical and observed.—2 mm. Bud color, typical and observed.—Close to 1 A and B. Sepal size.—Less than 1 mm across, 2 mm length. Sepal number.—5. Sepal shape, typical and observed.—Lanceolate. Sepal apex, typical and observed.—Acute. Sepal margin, typical and observed.—Entire. Sepal color, abaxial and adaxial typical and observed.—Close to 151 B. Peduncle length, typical and observed.—10 cm. Peduncle diameter, typical and observed.—2-3 mm. Peduncle color, typical and observed.—Close to 1 B and C. Peduncle texture, typical and observed.—Glabrous. Pedicel length, typical and observed.—3 mm. Pedicel diameter, typical and observed.—1 mm or less. Pedicel color, typical and observed.—Close to 1 B and C. Pedicel texture, typical and observed.—Glabrous. Carpel color.—1 A. Carpel surfaces.—Glabrous. Stigma shape.—Capitate. Stigma size.—1 mm. Stigma color.—1 A. Style length.—1-2 mm. Style shape.—Slender. Style color.—1 A. Ovary size.—1-2 mm. Ovary shape.—Aristate. Ovary color.—1 A. Pistil, typical and observed number.—5, length 3-4 mm. Fertility.—10 anthers, 10 stamens. Anther color.—12 A, Pollen color — close to 17 B. Pollen amount — moderate. Anther shape.—Elliptic, Anther length — almost 1 mm, Anther length — 1 mm. Filament color.—12 A. Blooming habit.—Terminal panicle on up to 10 cm stems. Scent.—No scent noticed. Fruit.—None. Hardiness.—U.S.D.A. hardiness zones 4-9. Disease resistance.—Resistance to diseases common to Sedum has not been observed on plants grown under nursery conditions. Pest resistance.—Resistance to pests common to Sedum has not been observed on plants grown under nursery conditions.