Comments

provided by eFloras
The seeds contain 30% oil, which is used industrially. Cornus alba is commonly cultivated as an ornamental.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 14: 210 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
project
eFloras.org
original
visit source
partner site
eFloras

Description

provided by eFloras
Shrubs deciduous, spreading, to 3 m tall. Bark purplish red; young branches terete, pubescent with short whitish trichomes, later glabrous, glaucous; old branches reddish, with scattered grayish white rounded lenticels; leaf scars semicircular, conspicuous. Leaf blade abaxially glaucous green, elliptic or ovate-elliptic, 5–8.5 × 1.8–5.5 cm, papery, veins (4 or)5(or 6), pubescent with short white appressed trichomes, axils of veins sometimes with a cluster of long brown trichomes, small veins conspicuous, base cuneate or broadly cuneate, margin entire or slightly revolute, apex acute. Corymbose cymes dense, ca. 3 cm wide, pubescent with soft white trichomes. Pedicel 2–6.5 mm, slender. Flowers white or yellowish white, 6–8.2 mm in diam. Calyx lobes sharply triangular, 0.1–0.2 mm, shorter than disk. Petals 3–3.8 × 1.1–1.8 mm. Stamens longer than petals; anthers yellowish. Style cylindrical, 2.1–2.5 mm; stigma disciform, broader than style. Fruit creamy white or bluish white at maturity, oblong-globose, laterally slightly compressed, ca. 8 mm, 5.5–6 mm in diam.; stones ± diamond-shaped, laterally compressed, ca. 5 × 3 mm, 3-ribbed on each side. Fl. Jun–Jul, fr. Aug–Oct.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 14: 210 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
project
eFloras.org
original
visit source
partner site
eFloras

Habitat & Distribution

provided by eFloras
Mixed broad-leaved and coniferous forests, mixed thickets by streams; 600–1700(–2700 m). Gansu, Hainan, Hebei, Heilongjiang, Jiangsu, Jiangxi, Jilin, Liaoning, Nei Mongol, Qinghai, Shaanxi, Shandong [Korea, Mongolia, Russia; Europe].
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 14: 210 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
project
eFloras.org
original
visit source
partner site
eFloras

Cornus alba

provided by wikipedia EN

Cornus alba, the red-barked, white or Siberian dogwood, is a species of flowering plant in the family Cornaceae, native to Siberia, northern China and Korea. It is a large deciduous surculose (suckering) shrub that can be grown as a small tree. As a popular ornamental used in landscaping its notable features include the red stems in fall (autumn) through late winter, the brightest winter bark of any cornus;[1] and the variegated foliage in some cultivars, such as C. alba 'Elegantissima', in which the discreet flat whitish flower clusters are almost lost in the variegated texture and dappled light. C. alba can grow to 3 m (10 ft) high, but variegated forms are less vigorous. For the brightest winter bark, young shoots are encouraged by cutting to the ground some older stems at the end of the winter, before leaves are open. The oval fruits are white, sometimes tinted blue.[2]

The plant is extremely hardy, to USDA Zone 3 - −40 °C (−40 °F).

The Latin specific epithet alba means “white”.[3]

The following cultivars have gained the Royal Horticultural Society's Award of Garden Merit (confirmed 2017):-[4]

  • 'Aurea'[5] (yellow leaves)
  • 'Elegantissima'[6] (deep red stems and small white flowers)
  • 'Sibirica'[7] (2.5 m (8 ft 2 in), brilliant red stems, cream flowers)
  • 'Spaethii'[8] (variegated leaves with yellow margins)

Gallery

Notes

  1. ^ Donald Wyman, Wyman's Garden Encyclopedia, s.v." Cornus alba 'Sibirica' ".
  2. ^ Brickell, Christopher, ed. (2008). The Royal Horticultural Society A-Z Encyclopedia of Garden Plants. United Kingdom: Dorling Kindersley. p. 306. ISBN 9781405332965.
  3. ^ Harrison, Lorraine (2012). RHS Latin for Gardeners. United Kingdom: Mitchell Beazley. ISBN 978-1845337315.
  4. ^ "AGM Plants - Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 22. Retrieved 24 January 2018.
  5. ^ "RHS Plant Selector - Cornus alba 'Aurea'". Retrieved 5 March 2021.
  6. ^ "RHS Plant Selector - Cornus alba 'Elegantissima'". Retrieved 5 March 2021.
  7. ^ "RHS Plant Selector - Cornus alba 'Sibirica'". Retrieved 5 March 2021.
  8. ^ "RHS Plant Selector - Cornus alba 'Spaethii'". Retrieved 5 March 2021.

Flora of Siberia Flora of China Flora of Korea

 title=
license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN

Cornus alba: Brief Summary

provided by wikipedia EN

Cornus alba, the red-barked, white or Siberian dogwood, is a species of flowering plant in the family Cornaceae, native to Siberia, northern China and Korea. It is a large deciduous surculose (suckering) shrub that can be grown as a small tree. As a popular ornamental used in landscaping its notable features include the red stems in fall (autumn) through late winter, the brightest winter bark of any cornus; and the variegated foliage in some cultivars, such as C. alba 'Elegantissima', in which the discreet flat whitish flower clusters are almost lost in the variegated texture and dappled light. C. alba can grow to 3 m (10 ft) high, but variegated forms are less vigorous. For the brightest winter bark, young shoots are encouraged by cutting to the ground some older stems at the end of the winter, before leaves are open. The oval fruits are white, sometimes tinted blue.

The plant is extremely hardy, to USDA Zone 3 - −40 °C (−40 °F).

The Latin specific epithet alba means “white”.

The following cultivars have gained the Royal Horticultural Society's Award of Garden Merit (confirmed 2017):-

'Aurea' (yellow leaves) 'Elegantissima' (deep red stems and small white flowers) 'Sibirica' (2.5 m (8 ft 2 in), brilliant red stems, cream flowers) 'Spaethii' (variegated leaves with yellow margins)
license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN