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''Toona sinensis'' (syn. ''Cedrela sinensis'' A.Juss.; Chinese Mahogany, Chinese Toon, or Red Toon (; (ヒンディー語:''daaraluu''); (マレー語:suren); (ベトナム語:tông dù)) is a species of ''Toona'' native to eastern and southeastern Asia, from North Korea south through most of eastern, central and southwestern China to Nepal, northeastern India, Myanmar, Thailand, Malaysia, and western Indonesia.〔Germplasm Resources Information Network: (''Toona sinensis'' )〕〔University of Melbourne: (Sorting ''Toona'' names )〕〔Hong Kong trees: (''Toona sinensis'' ) (in Chinese, with photos; (google translation ))〕〔Rushforth, K. (1999). ''Trees of Britain and Europe''. Collins ISBN 0-00-220013-9.〕 It is a deciduous tree growing to tall with a trunk up to 70 cm diameter. The bark is brown, smooth on young trees, becoming scaly to shaggy on old trees. The leaves are pinnate, 50–70 cm long and 30–40 cm broad, with 10–40 leaflets, the terminal leaflet usually absent (paripinnate) but sometimes present (imparipennate); the individual leaflets 9–15 cm long and 2.5–4 cm broad, with an entire or weakly serrated margin. The flowers are produced in summer in panicles 30–50 cm long at the end of a branch; each flower is small, 4–5 mm diameter, with five white or pale pink petals. The fruit is a capsule 2–3.5 cm long, containing several winged seeds.〔〔〔〔Taiwan Forestry: (''Toona sinensis'' ) (in Chinese, with photos; (google translation ))〕 ==Cultivation and uses== The young leaves of ''T. sinensis'' ''(xiāngchūn)'' are extensively used as a vegetable in China; they have a floral, yet onion-like flavor, attributed to volatile organosulfur compounds.〔Li J.-X., Eidman K., Gan X.-W., Haefliger O. P., J. Carroll P. J., Pika J. "Identification of (''S'',''S'')‑γ-glutamyl‑(''cis''-''S''‑1-propenyl)thioglycine, a naturally occurring norcysteine derivative, from the Chinese vegetable ''Toona sinensis.''" Journal of Agricultural and Food Chemistry 2013 61 (7470−7476).〕 Plants with red young leaves are considered of better flavour than those where the young leaves are green.〔〔Plants for a Future: (''Toona sinensis'' )〕〔Oriental Vegetable Seeds: (''Toona sinensis'' )〕 The timber is hard and reddish; it is valuable, used for furniture making 〔〔 and for bodies of electric guitars. Being a "true mahogany" (mahogany other than ''Swietenia''), it is one of the common replacements for ''Swietenia'' mahogany ("genuine mahogany") which is now commercially restricted from being sourced natively. Outside of its native region ''T. sinensis'' is valued more as a large ornamental tree for its haggard aspect.〔〔More, D. & White, J. (2003). ''Cassell's Trees of Britain & Northern Europe.'' London: Weidenfeld & Nicolson. p. 709〕 It is by far the most cold-tolerant species in the Meliaceae and the only member of the family that can be cultivated successfully in northern Europe. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Toona sinensis」の詳細全文を読む スポンサード リンク
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