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< Back PAU DE CUBIú (Dendrobangia boliviana) Print Friendly View

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PAU DE CUBIú (Dendrobangia boliviana)

Trade Name

Pau de cubiú

Scientific Name

Dendrobangia boliviana Rusby

Family

ICACINACEAE

Common Names

Cacha caspi (Ecuador); Roble (Ecuador); Jaboncillo (Ecuador); Arenillo (Colombia)

Description Of The Tree

Botanical Description

The tree is reported to develop a fluted bole in the base. It attains a height of about 25 m, up to 40 m in Bolivia. The bole can reach up to 60 cm in diameter.

Natural Distribution

This species is reported to be widely distributed all over tropical America from Colombia down to Bolivia.

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Wood Identification

Anatomic Description Of Wood

Wood diffuse porous. Vessels exclusively solitary (over 90%). Vessels exclusively solitary (over 90%). Tangential diameter of vessel lumina 150 to 200 micras (medium). Vessels per mm2 less than 6 (rare). Scalariform perforation plates with more than 15 bars. Apotracheal axial parenchyma diffuse and/or diffuse in aggregates. Prismatic crystals in non-chambered axial parenchyma cells. Prismatic crystals in chambered axial parenchyma cells and/or in fibers. Over 9 cells per parenchyma strand. 4 to 10 rays per mm (medium). Rays as wide or wider than the pores. Rays of two distinct sizes. Larger rays width 0. 1 mm or more and 2 mm or more in height. Larger rays more than 4 seriate. Rays exclusively uniseriate. Prismatic crystals in the ray cells. Hetero Fibers with distinctly bordered pits. Vessel-fiber pits similar to vessel-ray pits in size and shape.

Availability

Cites Status

Unrestricted

General Wood Description

Odor

This species is reported to have a distinct smell.

Color

The sapwood is not clearly differentiated, the heartwood is brown when dry.

Grain

The grain is usually straight.

Texture

The texture is typically medium to coarse.

Luster

It is reported to be moderate in luster.

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

4

Wood Physical Properties

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

0.68

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

0.76

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

4.5

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

2.7

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

1.7

Wood Chemical Properties

Wood Mechanical Properties

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

1193

Stiffness (MOE) 12%MC (kgf/cm²)

166000

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

618

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

101

Shear strength radial 12%MC (kgf/cm²)

108

Janka hardness (side) 12%MC (kgf)

823

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

916

Workability

Machining

Machining of this species is reported to be easy.

Turning

30

Finishing

This species gives a smooth and attractive finishing.

REFERENCED USES

End Uses Summary

HOUSING GENERAL, FURNITURE AND CABINETS, TURNING, OTHER AND MUSICAL INSTRUMENTS, handicrafts

General Housing
  • 10 - Silica in Timbers
Furniture Cabinets
  • 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Turning
  • 30 - Embassy of Honduras in Japan
Handcraft
  • 66 - Maderas latinoamericanas. VII. Caracteristicas anatomicas. propiedades fisicomecanicas, de secado, y tratabilidad de la madera juvenil de Cordia alliodora (Ruiz & Pav. Oken.)

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