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Acer mandshuricum leaf

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Rosids
Cladus: Eurosids II
Ordo: Sapindales

Familia: Sapindaceae
Subfamilia: Hippocastanoideae
Tribus: Acereae
Genus: Acer
Species: Acer mandshuricum
Name

Acer mandshuricum Maxim.
References

Diagn. pl. nov. Jap., Bulletin de l'Academie Imperiale des Sciences de Saint-Pétersbourg 12: 228 (1867).
Acer mandshuricum in the Flora of China
USDA, ARS, Germplasm Resources Information Network. Acer mandshuricum in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 08-Apr-12.

Vernacular names
Deutsch: Mandschurischer Ahorn
English: Manchurian Maple
español: Arce manchuriano
polski: Klon mandżurski
русский: Клён маньчжурский
中文: 东北枫

Acer mandshuricum, the Manchurian maple, is a species of maple native to China (southeastern Gansu, Heilongjiang, Jilin, Liaoning, southern Shaanxi), Korea and Russia (Primorsky Krai).[2]

Description

Acer mandshuricum is a slender deciduous tree that reaches a height of up to 30 meters tall but is usually smaller.[2][3][4] It is a trifoliate maple related to such other species as three-flower maple (Acer triflorum) and paperbark maple (Acer griseum) but has smooth, gray bark dissimilar to the exfoliating bark of either.[4]

The leaves have a 7–10 cm (3–4 in) petiole and three leaflets; the leaflets are short-stalked, oblong, 5–10 cm (2–4 in) long and 1.5–3 cm (0.5–1 in) broad, with serrated margins, the central leaflet the same size as or slightly larger than the two side leaflets. It leafs out early in the spring and the deep green leaves are contrast with its red petioles throughout the growing season.[2]

The flowers are yellowish-green, produced in corymbs of three to five together.[2]

The hard, horizontally-spreading samaras are 3-3.5 cm long and 1 cm broad.[2][5]
Cultivation

The species was first introduced to cultivation in 1904, when trees were planted at the Royal Botanic Gardens, Kew in Britain.[5] It has not proved very successful in cultivation in Britain, as its adaptation to a continental climate results in its early leafing and being damaged by late frosts in spring there; the largest recorded specimen is 8 metres tall (Tree Register of the British Isles).

Although it is rarely seen in cultivation outside of arboreta, its narrow habit makes it suitable for small gardens and, like its relatives, it has spectacular fall colour that includes pink and orange tones. Best growth occurs in full sun to partial shade and in acid to neutral soil that is moist but well-drained.[6]

In the United States, mature specimens can be seen at Arnold Arboretum in Boston, Massachusetts USA, including one 70-year-old specimen that has reached a size of approximately 13 m (43 ft) tall and 8 m (26 ft) wide. In Canada, the Royal Botanical Gardens in Hamilton, Ontario have three Manchurian maples each about 10 m (33 ft) tall.[6]
References

The Plant List, Acer mandshuricum Maxim.
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
Xu, Tingzhi; Chen, Yousheng; de Jong, Piet C.; Oterdoom, Herman John; Chang, Chin-Sung. "Acer mandshuricum". Flora of China. Vol. 11 – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
van Gelderen, C.J. & van Gelderen, D.M. (1999). Maples for Gardens: A Color Encyclopedia.
Bean, W. J. (1970). Trees and Shrubs Hardy in the British Isles, 8th ed.
ONLA Plant Selection Committee Archived October 16, 2006, at the Wayback Machine.

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