Eusideroxylon zwageri Teijsm. & Binn., Natuurk. Tijdschr. Ned. Ind. 25 () Eusideroxylon borneense Fern.-Vill. Salgada lauriflora Blanco. Diagnostics. Family Name: Lauraceae. Common Names: Borneo Ironwood, Billian, Ironwood , Ulin, Belian. Borneo Ironwood,Billian,Ironwood,Ulin,Belian. Record Info. Typical habitat, Habitat of E. zwageri: E. zwageri is able to grow under soil which seasonally waterlogged. Senami forest, Jambi Indonesia.

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Color The sapwood is pale yellowish.

Resistance To Impregnation The heartwood is extremely resistant to preservative treatment. Choose color black white green blue red orange yellow navi. Currently the situation is assessed as a serious depletion of stands. It is known colloquially in English as Bornean ironwood[3] billianor ulin. Durian Luncuk conservation area, Jambi, Indonesia. Eusidefoxylon wood is famed for its easy working characteristics, despite high density.

Eusideroxylon zwageri

The sapwood is pale yellowish. Title Line artwork Caption Representation of tree habit, leaves, inflorescence, flower, fruit, seed. Conservation of vanishing timber species in the Philippines In: It is a canopy species in primary forests. It is commonly found along rivers and adjacent hills.

Eusideroxylon zwageri: The official tree of Sarawak

Belian tree is a tree species that grows slowly and will take up to years to reach 30 cm diameter. Erosi plasma nutfah nabati: Archived from the original eusideroxylo May 6, The timber dries slowly, and care is needed to avoid checks and splits.


General Housing 10 – Silica in Timbers. Generally a species of lowland primary forest. It is reported to contain up to 0. Inflorescence axillary, paniculate, dense, drooping, cm long, densely short-hairy.

Eusideroxylon zwageri

The flowers are usually yellow to greenish or white, rarely reddish. The government of Indonesia and the state government of Sarawak have formally banned the export of this species. This page was last edited on 29 Octoberat Leaves alternate, simple, penni-veined, glabrous to slightly hairy below.

Schedule suggested for Thitmin. Eusideroxylon zwageri is a slow growing 0.

Eusideroxylon zwageri (billian)

Due to the excellent resistance to bacterialfungalinsect and marine borer attack the wood is highly prized for many outdoor uses. Retrieved 4 January The hypanthium are well-developed, resembling calyx tube tepals and the stamens perigynous.

The potent ‘elephant and tiger repellent’ is alleged to be the sap of the tree, which has a strong, pleasant lemon-like odour. It is also frequently found in dry docks as a timber to separate dusideroxylon hull of ships from the steel supporting stands. The large fruits are poisonous and pulverized fruits have been used medicinally against swellings.


It can be found throughout the lowlands of Sabah extending into the remainder of Borneo, other Indonesian islands, and the Philippines; occasionally abundant.

There is one pistil and one carpel. Nailing Pre-boring is essential. Gluing The timber is reported to require special precautions for gluing. Xylosandrus compactus shot-hole borer. In Java and Eusidroxylon it exists solely in National Parks.

Its height was however reduced from some 30 metres to only 20 after a lightning strike.

Kepingan belian juga dibuat sebagai hiasan luar bumbung rumah. It is an evergreen tree of up to 40 m tall. There are no pictures available for this datasheet If you can supply pictures for this datasheet please contact: Title Stem Caption Close up of bole. Uses Ulin is one of the heaviest and swageri durable timbers of South-East Asia. The teeth should be cleaned regularly from oily deposits.