Claret ash

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Claret Ash, Northumberland, UK

Fraxinus angustifolia subsp. oxycarpa 'Raywood', known as claret ash or Raywood ash is a cultivar of ash, a seedling variant of Caucasian ash, Fraxinus angustifolia subsp. oxycarpa. It is distinctive in its leaves turning to a dark red colour in autumn.

History

The original seedling was discovered near a group of assorted ash trees in Sewell's nursery in the

heritage-listed garden there.[3][4]

In 1937, claret ash trees were planted along the

central reservation and verges of Anzac Highway in Adelaide when it was redeveloped into a dual carriageway.[5]

The tree was introduced to cultivation in Britain in 1928 and to North America in 1956, although it did not become widely available there until 1979.[1]

Description

Claret ash is a cultivar of Caucasian ash, derived from a natural seedling variant.[1] Caucasian ash is a subspecies of narrow-leaved ash, Fraxinus angustifolia.

Claret ash grows to around 15–20 m (49–66 ft) and has dark green leaves that turn to a dark red

claret in the autumn. The bark of the tree is notably smoother than other Caucasian ash trees, which is quite apparent on those claret ash trees that have been grafted onto a Caucasian ash rootstock. In Australia and the United States a decline or dieback in some older trees has been observed, which has been attributed to a combination of environmental stress and the presence of the fungus Botryosphaeria.[1]

References

  1. ^
    ISBN 0-589-50178-X
  2. ^ O'Neil, Bernard (1 January 1990). "Tullie Cornthwaite Wollaston". Australian Dictionary of Biography. Retrieved 31 October 2021. This article was published: in the Australian Dictionary of Biography, Volume 12, 1990; online in 2006.
  3. ^ "Heritage details: Dwelling ('Raywood', previously 'Arbury Park') Garden, Chapel, Driveway and Gates". SA Heritage Places Database Search. Retrieved 31 October 2021. Text may have been copied from this source, which is available under a Attribution 4.0 International (CC BY 4.0) licence. ([1])
  4. ISBN 978-0-646-21194-7
  5. ^ "Claret Ash (Fraxinus oxycarpa 'Raywood')". National Trust. 24 May 2018. Retrieved 31 October 2021.

External links

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