Timbers of Kerala

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Scientific Name  Acacia auriculiformis A.Cunn.ex Benth.
Trade Name  Acacia
Local Name  Acacia
Family  Leguminosae
Tree Size  Medium sized
Tree Height ( m )  20
Tree Diameter ( cm )  90
Tree Distribution  Exotic from Papua New Guinea and Australia
Sapwood-Heartwood Distinction  Distinct
Sapwood Colour  Yellowish white
Heartwood Colour  Dark brownish
Hardness  Moderately hard
Specific Gravity Based on Weight Over-dry and Volume Green  0.6
Weight  Moderately heavy
Weight(Kg)/cubic meter at 12% Moisture Content  540
Texture  Coarse textured
Grain  Straight grained
Growth Rings  Fairly distinct
Porosity  Diffuse porous
Vessel Size  Large to medium sized
Vessel Arrangement  Solitary and in radial multiples of two to three
Vessel Diameter   130 - 220
Vessel Element Lenght  230 - 295 295
Perforation  Simple
Pit Outline  Polygonal to oval
Pit Size  Medium to large (8-11μm)non-vestured
Vessel Ray Pitting  Alternate; pit outline polygonal to oval and occurs through out the ray cell
Ray Nature  Fine, numerous and closely spaced
Ray Arrangement/Type  1-3 cell wide,homogeneous,wholly made up of procumbent cells
Ray Number  5 - 7
Ray Height  150 - 420
Fibre Walls  Thin, non-septate with simple pits on the radial walls
Fiber Length 
Modulus of Rupture in kg/cm2 (Green) 
Modulus of Elasticity in kg/cm2 (Green) 
Modulus of Rupture kg/cm2 (Dry) 
Modulus of Elasticity in kg/cm2 (Dry) 
Uses  Furniture making and construction purposes, agricultural implements, fuel wood, pulp making.
  • Tree Image
  • Timber Gross View
  • TS (100X)
  • TLS(100X)
  • RLS(100X)

College of Forestry - KAU