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BANAI-BANAI (Radermachera pinnata)

Trade Name

Banai-banai

Scientific Name

Radermachera pinnata (Blanco) Seem.

Family

BIGNONIACEAE

Common Names

Pheka phru (Thailand); Pata del monto (Philippines); Kalapuing (Philippines); Setenggek burong (Malaysia); Jangkal (Malaysia); Bunga pawang (Malaysia); Ririh (Indonesia); Kayu singanamba (Indonesia); Binutan (Indonesia); Lowland fox-glove tree; Banai-banai (Philippines)

Scientific Name Synonyms

Radermachera whitfordii Merr; Radermachera lobbii (Teijsm. & Binnend.) Miq.; Radermachera acuminata Merr.

Description Of The Tree

Botanical Description

It is a small tree with 30 cm diameter in the average. The bole is generally straight and regular, 8 to 12 m long. Buttresses up to 2 m high.

Natural Habitat

Radermachera species are found in lowland to submontane primary or more often secondary forests, up to 1,600 m of altitude. Particularly Radermachera pinnata is reported on ultramafic and limestone soils in Sabah and Sarawak.

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Wood Identification

Anatomic Description Of Wood

Wood diffuse porous. Occasionally tangential diameter of vessel lumina 100 micras or less. Vessels per mm2 5 to 20. Occasionally vessels per mm2 more than 20. Simple perforation plates. Vessel-ray pits similar to intervessel pits in size and shape. Intervessel Occasionally paratracheal axial parenchyma scanty and/or vasicentric. Occasionally axial parenchyma aliform. Occasionally axial parenchyma confluent. Occasionally two cells per parenchyma strand. 3 to 4 cells per parenchyma strand. 5 to 8 cells per parenchyma 4 to 10 rays per mm (medium). Larger rays more than 4 seriate. Homogeneous rays and/or sub-homogeneous rays (all ray cells procumbent). Occasionally body ray cells procumbent with one row of upright and/or square marginal cells (Kribs-III). Fibers with simple to minutely bordered pits.

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

Availability

Cites Status

Unrestricted

General Wood Description

Odor

It has no taste or scent.

Color

The sapwood is not distinct from the heartwood, which is light reddish yellow, turning to cinnamon buff upon exposure.

Grain

The grain is interlocked.

Texture

The texture is moderately fine.

Luster

The wood is described as lustrous.

Natural Durability

It is reported as non durable to moderately durable.

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

6

Resistance To Impregnation

It is very difficult to treat.

Wood Physical Properties

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

0.63

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

0.70

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

5.4

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

3.8

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

1.4

Wood Chemical Properties

Wood Mechanical Properties

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

803

Stiffness (MOE) 12%MC (kgf/cm²)

101900

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

394

Shear strength radial 12%MC (kgf/cm²)

85

Janka hardness (side) 12%MC (kgf)

422

Workability

Sawing

Cutting resistance is generally low.

Machining

Machining of this species is reported to be easy.

Finishing

Finishing properties are rated as fair.

REFERENCED USES

End Uses Summary

HOUSING GENERAL, frames, FURNITURE AND CABINETS, TOOLS, tool handles, OTHER AND MUSICAL INSTRUMENTS, handicrafts, moldings

General Housing
  • 10 - Silica in Timbers
Frames
  • 16 - Woods of the World
Furniture Cabinets
  • 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Tools
  • 42 - Utilización Industrial de Nuevas Especies Forestales en el Perú.
Tool Handles
  • 43 - Maderas de Bolivia (Características y Usos de 55 Maderas Tropicales)
Handcraft
  • 66 - Maderas latinoamericanas. VII. Caracteristicas anatomicas. propiedades fisicomecanicas, de secado, y tratabilidad de la madera juvenil de Cordia alliodora (Ruiz & Pav. Oken.)
Molding
  • 79 - Padronização da Nomenclatura Comercial Brasileira das Madeiras Tropicais Amazônicas, Sugestão

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