Phellodendron

Japanese cork tree ( P. japonicum)

The cork trees ( Phellodendron ) are a genus of flowering plants of the rue family ( Rutaceae ). The deciduous tree species are all native to East Asia. The best-known representative is the Amur cork tree ( P. amurense ).

Description

The name of the cork trees comes from their usually very corky bark. The bark is intensely colored yellow. The winter buds are concealed in the base of the petioles. The oppositely arranged leaves are constantly pinnate, consisting of 5-13 individual leaflets. These individual leaves are translucent glandular dots and smell aromatic. The dioecious flowers are in terminal panicles. They are small, yellowish - green color and mostly 5 - merous. From them black stone fruits with 5 -seeded nuclei develop.

Use

Cork trees have a ring-porous wood. The valuable heartwood is used in joinery. From Bast, fruits and leaves essential oils can be produced.

System

It can be distinguished up to 10 types:

• Amur cork tree ( P. amurense Rupr; Syn: .. Phellodendron lavalleei Dode, P. sachalinense ( F.Schmidt ) Coffin; P. wilsonii Hayata & Kaneh. ); it occurs in East Asia (China, Japan, Russia and Korea)
• Chinese cork tree ( P. chinense CK Schneid. ); it occurs in China
• Japanese cork tree ( P. japonicum Maxim, . However also becomes P. amurense detected by some authors ).

Swell

• Schütt, P.; Schuck, H. J.; Voice, B. ( 2002): Encyclopedia of tree and shrub species: 333-334. ISBN 3-933203-53-8.
• Germplasm Resources Information Network ( GRIN); accessed on 19 October 2013.

• Rutaceae