dcsimg

Description ( englanti )

tarjonnut eFloras
Trees to 25 m tall, androdioecious, sometimes andromonoecious. Bark yellow-brown, vertically fissured, peeling in small scales. Branchlets slender, sparsely pilose, soon glabrous or nearly glabrous; winter buds small, scales ciliate. Leaves deciduous; petiole purplish, 2.5-6 cm, sparsely pilose or glabrous; leaf blade membranous, papery, or subleathery, abaxially glabrescent, with densely pilose midvein, adaxially pilose, soon glabrous, 3-foliolate per petiole; petiolule 5-10 mm, slender, sparsely pilose; leaflet blades oblong-ovate to obovate-lanceolate, 4-9 × 2-3.5 cm, margin entire or remotely serrate with a few coarse teeth; middle leaflets cuneate apically; lateral veins 11-13 pairs, adaxially conspicuous. Inflorescence corymbose, 3-flowered. Sepals 5. Petals 5. Stamens 10. Ovary pubescent. Fruit greenish yellow; nutlets subglobose, 1.4-1.6 × 1-1.2 cm, densely pubescent; wing including nutlet 3.5-4.5 × 1.3-2 cm, subparallel, wings spreading at 90° or erectly. Fl. Apr, fr. Sep.
lisenssi
cc-by-nc-sa-3.0
tekijänoikeus
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliografinen lainaus
Flora of China Vol. 11: 516, 551 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
lähde
Flora of China @ eFloras.org
muokkaaja
Wu Zhengyi, Peter H. Raven & Hong Deyuan
projekti
eFloras.org
alkuperäinen
käy lähteessä
kumppanisivusto
eFloras

Distribution ( englanti )

tarjonnut eFloras
Heilongjiang, Jilin, Liaoning [Korea].
lisenssi
cc-by-nc-sa-3.0
tekijänoikeus
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliografinen lainaus
Flora of China Vol. 11: 516, 551 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
lähde
Flora of China @ eFloras.org
muokkaaja
Wu Zhengyi, Peter H. Raven & Hong Deyuan
projekti
eFloras.org
alkuperäinen
käy lähteessä
kumppanisivusto
eFloras

Habitat ( englanti )

tarjonnut eFloras
Mixed forests; 400-1700 m.
lisenssi
cc-by-nc-sa-3.0
tekijänoikeus
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliografinen lainaus
Flora of China Vol. 11: 516, 551 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
lähde
Flora of China @ eFloras.org
muokkaaja
Wu Zhengyi, Peter H. Raven & Hong Deyuan
projekti
eFloras.org
alkuperäinen
käy lähteessä
kumppanisivusto
eFloras

Synonym ( englanti )

tarjonnut eFloras
Acer triflorum f. subcoriaceum (Komarov) S. L. Tung; A. triflorum var. subcoriaceum Komarov; Crula triflora (Komarov) Nieuwland.
lisenssi
cc-by-nc-sa-3.0
tekijänoikeus
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliografinen lainaus
Flora of China Vol. 11: 516, 551 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
lähde
Flora of China @ eFloras.org
muokkaaja
Wu Zhengyi, Peter H. Raven & Hong Deyuan
projekti
eFloras.org
alkuperäinen
käy lähteessä
kumppanisivusto
eFloras

Acer triflorum ( englanti )

tarjonnut wikipedia EN

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.

References

  1. ^ a b 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. ^ a b c d van Gelderen, C.J.; van Gelderen, D.M. (1999). Maples for Gardens: A Color Encyclopedia.
  3. ^ a b "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.

Media related to Acer triflorum at Wikimedia Commons

lisenssi
cc-by-sa-3.0
tekijänoikeus
Wikipedia authors and editors
alkuperäinen
käy lähteessä
kumppanisivusto
wikipedia EN

Acer triflorum: Brief Summary ( englanti )

tarjonnut wikipedia EN

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. 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.

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.

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.

lisenssi
cc-by-sa-3.0
tekijänoikeus
Wikipedia authors and editors
alkuperäinen
käy lähteessä
kumppanisivusto
wikipedia EN