#The aforementioned photograph and following observations and measurements describe plants grown in Leamington, Ontario, Canada during the autumn in a fiberglass-covered greenhouse and under conditions and practices which approximate those generally used in commercial pot-type Chrysanthemum production. During the production of the plants, day temperatures ranged from 21° C. to 27° C., night temperatures ranged from 17° C. to 19° C. and light levels ranged from 5,000 to 6,000 foot candles. Four unrooted cuttings were directly stuck in 15-containers, exposed to long day/short night conditions, and pinched about two weeks later. One week after the pinch, the photoinductive short day/long night treatments were started. Plants used in the photograph and for the desciption were disbudded and were about two months old. In the following description, 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: Chrysanthemum×morifolium cultivar Yogreen Valley. Parentage: Female, or seed, parent—Proprietary selection of Chrysanthemum×morifolium identified as code number P888G 3, not patented. Male, or pollen, parent: Proprietary selection of Chrysanthemum×moricolium identified as code number P806G 1, not patented. Propagation: Type.—Terminal vegetative cuttings. Time to initiate roots.—About four days at temperatures of about 21° C. Time to produce a rooted young plant.—About ten days at temperatures of about 21° C. Root description.—Medium thickness, fibrous; white in color. Rooting habit.—Freely branching; moderately dense. Plant description: Appearance.—Herbaceous daisy pot-type Chrysanthemum typically grown as a center-budded or as a natural spray type. Stems upright and outwardly spreading giving a uniformly mounded appearance to the plant. Freely branching habit, about four lateral branches develop after removal of terminal apex (pinching); dense and full plant habit; moderately vigorous growth habit. Plant height.—About 29 cm. Plant width.—About 45 cm. Lateral branches (peduncles): Length: About 24 cm. Diameter: About 6 mm. Internode length: About 3.3 cm. Strength: Very strong. Texture: Pubescent. Color: Close to 144A. Foliage description: Arrangement.—Alternate, simple. Length.—About 7.5 cm. Width.—About 5.75 cm. Shape. —Palmately lobed. Apex.—Mucronate. Base.—Attenuate with truncate tendencies. Margin.—Palmately lobed, sinuses between lateral lobes parallel to divergent. Texture, upper and lower surface.—Pubescent. Color.—Developing and fully expanded foliage, upper surface: Lighter green than 147A; venation, close to 147B. Developing and fully expanded foliage, lower surface: Close to 147B; venation, close to 147B. Petiole length.—About 1.5 cm. Petiole diameter.—About 4 mm. Petiole texture, upper and lower surfaces.—Pubescent. Petiole color, upper surface.—Center, close to 147B to 147C; towards the margins, lighter green that 147A. Petiole color, lower surface.—Close to 147B. Inflorescence description: Appearance.—Daisy-type inflorescence form with quilled ray florets. Inflorescences borne on terminals above foliage. Disk and ray florets arranged acropetally on a capitulum. Inflorescence not fragrant. Typically grown as a center-budded type or as a natural spray. Flowering response.—Under natural conditions, plants flower in the autumn/winter in the Northern Hemisphere. At other times of the year, inflorescence initiation and development can be induced under short day/long night conditions (at least 13.5 hours of darkness). Early flowering habits; plants exposed to three weeks of long day/short night conditions followed by photoinductive short day/long night conditions flower about 54 days later. Postproduction longevity.—Inflorescences maintain good color and substance for about three weeks in an interior environment. Quantity of inflorescences per lateral stem.—About seven. Inflorescence bud.—Height: About 7 mm. Diameter: About 9 mm. Shape: Oblate. Color: Close to 138A. Inflorescence size.—Diameter: About 5.5 cm. Depth (height): About 1.8 cm. Disc diameter: About 1.5 cm. Receptacle height: About 5 mm. Receptacle diameter: About 7 mm. Receptacle color: Close to 144A. Ray florets.—Shape: Quilled. Orientation: Initially upright, then about 70° from vertical. Length: About 2.9 cm. Width: Towards the apex, about 4 mm; towards the base, about 1.5 mm. Apex: Emarginate, acute of obtuse. Base: Fused. Margin: Entire. Texture, upper and lower surfaces: Smooth, glabrous, satiny. Number of ray florets per inflorescence: About 115 arranged in about five whorls. Color: When opening and fully opened, upper surface: Close to 145A; color becoming closer to 145B to 145C with development. When opening and fully opened, lower surface: Close to 145A; color becoming closer to 145B to 145C with development. Disc florets.—Arrangement; massed at center of receptacle. Shape: Tubular, elongated. Apex: Five-pointed. Length: About 1 cm. Width: Towards the apex, about 3 mm; towards the base, about 1 mm. Numbers of disc florets per inflorescence: About 67. Color, immature: Apex: Close to 154A. Mid-section: Close to 145A. Base: Close to 155D. Color, mature: Apex: Close to 6A. Mid-section: Close to 145A. Base Close to 155D. Phyllaries.—Number of phyllaries per inflorescence: About 16 arranged in two whorls. Length: About 1 cm. Width: About 4 mm. Shape: Lanceolate. Apex: Acute. Base: Truncate. Texture, upper surface: Smooth, waxy. Texture, lower surface: Pubescent. Color, upper surface: Close to 144A. Color, lower surface: Close to 138A. Peduncles.—Length: First peduncle: About 2.6 cm. Fourth peduncle: About 5.2 cm. Seventh peduncle: About 5.5 cm. Diameter (first peduncle): About 2.5 mm. Angle: About 45° from vertical. Strength: Strong, flexible. Texture: Pubescent. Color: Close to 144A. Reproductive organs.—Androecium: Present on disc florets only. Filament length: About 7 mm. Filament color: Close to 155D. Anther shape: Narrowly oblong. Anther length: Less than 1 mm. Anther color: Close to 5A. Pollen amount: None observed. Gynoecium: Pistil length: About 1.1 cm. Stigma shape: Bi-parted. Stigma color: Close to 9A. Style length: About 9 mm. Style color: Close to 155D. Ovary color: Close to 155D. Seed/fruit.—Seed and fruit production has not been observed. Disease/pest resistance: Resistance to pathogens and pests common to Chrysanthemums has not been observed on plants grown under commercial conditions. Temperature tolerance: Plants of the new Chrysanthemum have been observed to tolerate temperatures ranging from about 1° C. to about 35° C.