Acer triflorum

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Acer triflorum
Acer triflorum.jpg
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Sapindales
Family: Sapindaceae
Genus: Acer
Section: Acer sect. Trifoliata
Series: Acer ser. Grisea
Species:
A. triflorum
Binomial name
Acer triflorum

Acer triflorum, the three-flowered maple, is a species of maple native to hills of northeastern China (Heilongjiang, Jilin, Liaoning) and Korea.

It is a deciduous tree that reaches a height of about 25 metres (82 ft) but is usually smaller. [1] [2] It is a trifoliate maple related to such other species as Manchurian Maple (Acer mandshuricum) and Paperbark Maple (Acer griseum). It has yellowish-brown exfoliating bark that peels in woody scales rather than papery pieces like Acer griseum. [2]

The leaves have a 2.5–6 centimetres (0.98–2.36 in) petiole and three leaflets; the leaflets are 4–9 centimetres (1.6–3.5 in) long and 2–3.5 centimetres (0.79–1.38 in) broad, with serrated margins, the central leaflet the same size as or slightly larger than the two side leaflets. The flowers are yellow, produced in small corymbs of three small flowers each, hence the name. The samaras are 3.5–4.5 centimetres (1.4–1.8 in) long and 1.3–2 cm broad, hairy, the nutlet with a woody shell. [1] [2]

Even more than its relatives, three-flower maple has spectacular fall colour that may include brilliant orange, scarlet, purple and gold. It is one of the few trees to develop good fall colour in shade. [3]

Cultivation

The species was first introduced to cultivation in 1923. Although common in maple collections, it is rarely seen in cultivation outside of arboreta.

It grows at a slow to moderate rate and prefers moist, well drained soil; growth is often shrub-like in cultivation. It is relatively tolerant of drought and clay compared to its close relatives. It does not tolerate wet or over-compacted soil. [3] Propagation is similar to that required for Acer griseum and the number of viable seeds is likewise very small. [2]

In Great Britain, the largest specimens are up to 13 m (43 ft) tall, and 60 cm (24 in) trunk diameter (Tree Register of the British Isles). It has gained the Royal Horticultural Society's Award of Garden Merit. [4] In the United States, mature specimens can be seen at Arnold Arboretum in Boston, Massachusetts.

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<i>Acer griseum</i> Species of maple

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<i>Acer japonicum</i> Species of maple

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<i>Acer mandshuricum</i> Species of maple

Acer mandshuricum, the Manchurian maple, is a species of maple native to China, Korea and Russia.

<i>Acer maximowiczianum</i> Species of maple

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<i>Acer capillipes</i> Species of maple

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<i>Acer monspessulanum</i> Species of maple

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<i>Acer davidii</i> Species of maple

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.

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<i>Acer crataegifolium</i> Species of maple

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<i>Acer sieboldianum</i> Species of maple

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<i>Acer cissifolium</i> Species of maple

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<i>Acer floridanum</i> Species of maple

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<i>Acer palmatum</i> Species of maple

Acer palmatum, commonly known as Japanese maple, palmate maple, or smooth Japanese maple (Japanese: irohamomiji, イロハモミジ, or momiji,, is a species of woody plant native to Japan, Korea, China, eastern Mongolia, and southeast Russia. Many different cultivars of this maple have been selected and they are grown worldwide for their large variety of attractive forms, leaf shapes, and spectacular colors.

References

  1. 1 2 Xu, T.-z., Chen, Y., de Jong, P. C., & Oterdoom, H. J. Flora of China: Aceraceae (draft) Archived September 25, 2006, at the Wayback Machine
  2. 1 2 3 4 van Gelderen, C.J.; van Gelderen, D.M. (1999). Maples for Gardens: A Color Encyclopedia .
  3. 1 2 "NCSi factsheet: Acer triflorum". Archived from the original on 2012-02-05. Retrieved 2006-11-27.
  4. "RHS Plant Selector - Acer trifolium" . Retrieved 23 February 2020.

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