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DEPLANCHEA (Deplanchea tetraphylla)
Trade Name
Deplanchea
Scientific Name
Deplanchea tetraphylla (R. Br.) F. Muell. ex Steenis
Family
BIGNONIACEAE
Common Names
Laargola (Indonesia); Bas (Indonesia); Kapul (Indonesia)
Scientific Name Synonyms
Faradaya chrysoclada K. Schumann & Lauterb; Diplanthera tetraphylla R. Br.; Deplanchea hirsuta (F.M. Bailey)
Description Of The Tree
Botanical Description
It is an evergreen, small to large tree up to 45 m tall. The bole is branchless for up to 20 m, up to 150 cm in diameter, sometimes with steep buttresses or fluted at base.
Natural Habitat
It is a light demanding tree, found in open and secondary forests, often near swampy locations, up to 1,000 m of altitude.
Wood Identification
Anatomic Description Of Wood
Vessels per mm2 5 to 20. Simple perforation plates. Vessel-ray pits similar to intervessel pits in size and shape. Intervessel pits medium, 7 to 10 micras. Axial parenchyma aliform. Axial parenchyma confluent. Homogeneous rays and/or sub-homogeneous rays (all ray cells procumbent).
Availability
Cites Status
Unrestricted
General Wood Description
Color
The heartwood is pale brown or yellow-brown, not distinctly demarcated from the straw-colored sapwood.
Grain
It has straight grain.
Texture
The texture of the wood is fine.
Natural Durability
It is reported to have low natural resistance.
Natural durability index (1= Very high durability, 7=Vey low durability)
5
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.46
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.50
Total shrinkage Tangential (Saturated to 0%MC) (%)
7.4
Total shrinkage Radial (Saturated to 0%MC) (%)
4.7
Drying Defects
Ease of Drying: Air seasoning is reported to be easy and slow with little degrade. Boards of 25 mm thick take 42 days (Indonesia) but 6 months is also reported, and of 40 mm thick take about 3 months to air dry.
Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)
1.6
Wood Chemical Properties
Wood Mechanical Properties
Bending Strength (MOR),12%MC (kgf/cm²)
642
Stiffness (MOE) 12%MC (kgf/cm²)
82947
Compression parallel to fiber 12%MC (kgf/cm²)
357
Shear strength radial 12%MC (kgf/cm²)
87
Janka hardness (side) 12%MC (kgf)
296
Janka hardness (end grain) 12%MC (kgf)
410
Workability
REFERENCED USES
End Uses Summary
HOUSING GENERAL, NAVAL CONSTRUCTION
General Housing
- 10 - Silica in Timbers
Shipbuilding
- 55 - Tropical Timber Atlas of Latin America
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