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Père David's Maple

Acer davidii Franch.

Comments

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This species is ornamental for its snakelike bark and the autumn coloration of its leaves.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 11: 516, 538, 539 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Flora of China @ eFloras.org
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Wu Zhengyi, Peter H. Raven & Hong Deyuan
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eFloras.org
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Description

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Trees ca. 10 m tall, andromonoecious, but often with an androdioecious sex expression. Bark gray-brown. Branchlets brownish green or greenish purple, glabrous; winter buds oblong, small, glabrous, scales 2 pairs. Leaves deciduous; petioles 3-6 cm, rufous pubescent when young; leaf blade abaxially pale green, adaxially dark green, ovate, ovate-oblong, or suborbicular-ovate, (6-)8-12(-14) × (4-)5-8(-9) cm, papery, abaxially rufous pubescent on veins when young, glabrescent when mature, adaxially glabrous, veins 10-13 pairs, base subcordate or rounded, margin undivided or (3 or)5-lobed, serrulate or doubly serrate, apex acuminate or rarely caudate-acuminate; lobes apically obtuse or middle lobe triangular and lateral and basal lobes apically acute. Flowers greenish yellow. Inflorescence pendulous, racemose. Pedicel 1-1.5 cm, slender. Sepals 5, elliptic, ca. 4 mm, apex obtuse. Petals 5, obovate, ca. 4 mm. Stamens 8, ca. 3 mm, glabrous; anthers yellow. Disk glabrous, lobes intrastaminal. Ovary rudimentary. Fruit brownish yellow; nutlets flat, 8-10 × ca. 6 mm; wing including nutlet 2.5-2.8 cm, wings spreading horizontally or obtusely. Fl. Mar-Apr, fr. Sep. 2n = 26.
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. 11: 516, 538, 539 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

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Mixed forests. Anhui, Fujian, SE Gansu, Guangdong, Guangxi, Guizhou, Hebei, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Ningxia, S Shaanxi, Shanxi, Sichuan, Yunnan, Zhejiang [Myanmar].
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. 11: 516, 538, 539 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

Acer davidii

provided by wikipedia EN

Wikimedia Commons has media related to Acer davidii.

Acer davidii, or Père David's maple, is a species of maple in the snakebark maple group. It is native to China, from Jiangsu south to Fujian and Guangdong, and west to southeastern Gansu and Yunnan.[2]

The tree was originally discovered by a Chinese person lost to history but a French priest Armand David who was in Central China as a missionary took the credit. It was re-discovered by Charles Maries during his visit to Jiangsu in 1878.

It is a small deciduous tree growing to 10–15 m tall with a trunk up to 40 cm in diameter, though usually smaller and often with multiple trunks, and a spreading crown of long, arching branches. The bark is smooth, olive-green with regular narrow pale vertical stripes on young trees, eventually becoming dull grey-brown at the base of old trees. The leaves are 6–18 cm long and 4–9 cm broad, with a petiole 3–6 cm long; they are dark green above, paler below, ovate, unlobed or weakly three-lobed, with a serrated margin. They turn to bright yellow, orange or red in the autumn. The flowers are small, yellow, with five sepals and petals about 4 mm long; they are produced on arching to pendulous 7–12 cm racemes in late spring, with male and female flowers on different racemes. The samara nutlets are 7–10 mm long and 4–6 mm broad, with a wing 2–3 cm long and 5 mm broad.[2][3][4]

Subspecies and cultivars

There are two subspecies,[2][4] often treated as a distinct species:[3][5]

  • Acer davidii subsp. davidii. Père David's maple. Bark greenish-brown with white stripes. Shoots pinkish-green. Leaf petiole pink to red; leaf margin usually single-serrate with variably-sized serrations.
  • Acer davidii subsp. grosseri (Pax) de Jong. Hers's maple (Acer grosseri Pax; syn. Acer hersii Rehd.)[6] - bark green with white to pale green stripes. Shoots green. Leaf petiole green; leaf margin more often three-lobed and double-serrate.

Along with A. rufinerve, the two subspecies of Père David's maple are among the most commonly cultivated snakebark maples. Both are relatively hardy and fast-growing.[4]

Among the cultivars of A. davidii are:-

In some cases, these cultivars cannot be assigned to one subspecies or the other but are simply considered cultivars of A. davidii.[4]

Gallery

References

  1. ^ The Plant List, Acer davidii Franch.
  2. ^ a b c Flora of China (draft): Aceraceae
  3. ^ a b Rushforth, K. (1999). Trees of Britain and Europe. Collins ISBN 0-00-220013-9.
  4. ^ a b c d e van Gelderen, C. J. & van Gelderen, D. M. (1999). Maples for Gardens: A Color Encyclopedia.
  5. ^ a b Mitchell, A. F. (1974). A Field Guide to the Trees of Britain and Northern Europe. Collins ISBN 0-00-212035-6
  6. ^ "Acer grosseri var. hersii". RHS. Retrieved 7 June 2020.
  7. ^ "Royal Horticultural Society Plant Selector - Acer davidii 'George Forrest'". Retrieved 23 February 2020.
  8. ^ "Acer 'Serpentine'". RHS. Retrieved 7 June 2020.
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Wikipedia authors and editors
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Acer davidii: Brief Summary

provided by wikipedia EN
Wikimedia Commons has media related to Acer davidii.

Acer davidii, or Père David's maple, is a species of maple in the snakebark maple group. It is native to China, from Jiangsu south to Fujian and Guangdong, and west to southeastern Gansu and Yunnan.

The tree was originally discovered by a Chinese person lost to history but a French priest Armand David who was in Central China as a missionary took the credit. It was re-discovered by Charles Maries during his visit to Jiangsu in 1878.

It is a small deciduous tree growing to 10–15 m tall with a trunk up to 40 cm in diameter, though usually smaller and often with multiple trunks, and a spreading crown of long, arching branches. The bark is smooth, olive-green with regular narrow pale vertical stripes on young trees, eventually becoming dull grey-brown at the base of old trees. The leaves are 6–18 cm long and 4–9 cm broad, with a petiole 3–6 cm long; they are dark green above, paler below, ovate, unlobed or weakly three-lobed, with a serrated margin. They turn to bright yellow, orange or red in the autumn. The flowers are small, yellow, with five sepals and petals about 4 mm long; they are produced on arching to pendulous 7–12 cm racemes in late spring, with male and female flowers on different racemes. The samara nutlets are 7–10 mm long and 4–6 mm broad, with a wing 2–3 cm long and 5 mm broad.

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copyright
Wikipedia authors and editors
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