Toona sinensis (syn. Cedrela
sinensis A.Juss.; Chinese mahogany, Chinese toon, or red
toon (Chinese: 香椿; pinyin:
xiāngchūn; Hindi: daaraluu; Malay:
suren; Vietnamese: 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.
It is a deciduous
tree growing to
25 metres (82 ft) 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.
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.
Plants with red young leaves are considered of better flavour than those where
the young leaves are green.
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.
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.
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