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ANABIONG (Trema orientalis)

Trade Name

Anabiong

Scientific Name

Trema orientalis (Linn.) Blume

Family

ULMACEAE

Common Names

Anabiong (Philippines)

Description Of The Tree

Botanical Description

It is a medium to large sized tree, growing in the average 20 meters and attaining diameters of 60 cm at breast height. The bole is fairly straight, with no buttresses.

Natural Habitat

It is a very common tree in the Philippines, growing abundantly in open dry brushland and waste places at low and medium elevations.

Non Timber Uses

The bark of this species is reported to contain tannins.

Wood Identification

Anatomic Description Of Wood

Wood diffuse porous. Tangential diameter of vessel lumina 200 micras or more (large). Paratracheal axial parenchyma scanty and/or vasicentric. Body ray cells procumbent with over 4 rows of upright and/or square marginal cells (Kribs-I).

  • Wood Macro Photo Tangential Plane
  • Wood Micro Photo Of Transversal Section

Availability

Cites Status

Unrestricted

General Wood Description

Odor

No odor or taste are reported for this species.

Color

The sapwood is not distinct from the heartwood which is buff or straw colored.

Grain

It has straight or interlocked grain.

Texture

Texture is reported to be fine to medium.

Luster

It is reported to be lustrous.

Natural Durability

It is sensible to pin hole borers and probably to termites attack.

Natural durability index (1= Very high durability, 7=Vey low durability)

5

Resistance To Impregnation

The heartwood is resistant to impregnation, but the sapwood can be readily treated.

Wood Physical Properties

Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)

0.37

Air-dry Density (Weight and volume at 12%MC) (g/cm³)

0.39

Total shrinkage Tangential (Saturated to 0%MC) (%)

6.3

Total shrinkage Radial (Saturated to 0%MC) (%)

3.3

Drying Defects

Ease of Drying: Liable to develop long, fine, deep cracks if cut to wide sections, green conversion to smalll size and stacking under cover recommended.

Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)

1.9

Wood Chemical Properties

Wood Mechanical Properties

Bending Strength (MOR),12%MC (kgf/cm²)

558

Stiffness (MOE) 12%MC (kgf/cm²)

87067

Compression parallel to fiber 12%MC (kgf/cm²)

274

Compression perpendicular to fiber 12%MC (kgf/cm²)

47

Shear strength radial 12%MC (kgf/cm²)

71

Janka hardness (side) 12%MC (kgf)

250

Janka hardness (end grain) 12%MC (kgf)

343

Workability

Sawing

Sawing of this species is reported to be rather easy.

Rotary Veneer Cutting

This timber can be used for lamination.

Sliced Veneer

This timber can be used for lamination.

Blunting Effect

Some blunting effect on the cutting elements is reported for this species.

Machining

This species is easy to machine. It works well with most machine tools.

Finishing

This species has a fair behavior in finishing.

REFERENCED USES

End Uses Summary

PACKING, OTHER AND MUSICAL INSTRUMENTS, handicrafts, shoes, particleboard, paper

Packing
  • 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
Handcraft
  • 66 - Maderas latinoamericanas. VII. Caracteristicas anatomicas. propiedades fisicomecanicas, de secado, y tratabilidad de la madera juvenil de Cordia alliodora (Ruiz & Pav. Oken.)
Shoes
  • 70 - Proprietes physiques et mecaniques des bois tropicaux de l`union francaise
Particleboard
  • 80 - Estudio Integral de la Madera para Construcción
Paper
  • 82 - Compilation of Data on the Mechanical Properties of Foreign woods (Part 2) Central and South America.

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