Trident Maple

Acer buergerianum subsp. var.	Trident Maple
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	Aceraceae > Acer buergerianum var. ,

Acer buergerianum (Trident Maple) is a species of maple native to eastern China (from Shandong west to southeastern Gansu, south to Guangdong and southwest to Sichuan) and Taiwan. It is widely grown in temperate regions as an ornamental tree.

It is a small to medium-sized deciduous tree reaching a height of 5-20 m with a trunk up to 50 cm diameter. The leaves are in opposite pairs, 2.5-8 cm long (excluding the 2-5 cm petiole) and 3.5–6.5 cm broad, hard, glossy dark green above, paler below, usually with three lobes; on mature trees the lobes forward-pointing and with smooth margins, on young trees with more spreading lobes and serrated margins. The flowers are produced in spring, yellow-green, in pendulous corymbs; they are small, with five greenish sepals and five yellow-white petals about 2 mm long, and eight stamens. The fruit is a samara with two winged seeds, each seed 4-7 mm diameter, with a 15 mm wing; the wings are forward-pointing and often overlapping each other.

More information about this species can be found on the genus page.

Cultivation

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Propagation

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Pests and diseases

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Varieties

Several interesting cultivars have been developed, many of these bear Japanese names. Notable cultivars include 'Goshiki Kaede' (striking pink and green variegation), 'Kifu Nishiki' (roundish, almost un-lobed leaves), 'Mino Yatsubusa' (dwarf with long, narrow leaves) 'Mitsubato Kaede' (distinctive cork-like trunk) and 'Naruto' (strongly incurved leaf surface).

The species is variable, and a number of varieties have been described:

• Acer buergerianum var. buergerianum. Hubei, Hunan, Jiangsu, Jiangxi, Shandong, Zhejiang.
• Acer buergerianum var. jiujiangense Z.X.Yu. Jiangxi.
• Acer buergerianum var. horizontale F.P.Metcalf. Southern Zhejiang.
• Acer buergerianum var. formosanum (Hayata ex Koidzumi) Sasaki. Taiwan (endemic).
• Acer buergerianum var. kaiscianense (Pampanini) W.P.Fang. Gansu, Hubei, Shaanxi.
• Acer buergerianum var. yentangense W.P.Fang & M.Y.Fang. Zhejiang.

A few trees have consistently unlobed leaves; these were first described as a variety A. trifidium var. integrifolium Makino (A. trifidium is an old synonym of A. buergerianum), but are now not distinguished from the species. Occasional unlobed leaves also occur on most trees with otherwise normal three-lobed leaves.

Gallery

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External links

• w:Trident Maple. Some of the material on this page may be from Wikipedia, under the Creative Commons license.
• Trident Maple QR Code (Size 50, 100, 200, 500)