Timbers of Kerala

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Scientific Name  Xylia dolabriformis Benth.
Trade Name  Pyinkado
Local Name  Burmese irul,Varavu irul
Family  Leguminosae
Tree Size  Large to very large
Tree Height ( m )  30 - 37
Tree Diameter ( cm )  60
Tree Distribution  Burma and parts of India. But widely imported from South East Asian countries.
Sapwood-Heartwood Distinction  Distinct
Sapwood Colour  Pale pinkish
Heartwood Colour  Dark yellowish brown with darker streaks; darkens on exposure.
Hardness  Hard
Specific Gravity Based on Weight Over-dry and Volume Green  0.86
Weight  Heavy to moderately heavy
Weight(Kg)/cubic meter at 12% Moisture Content 
Texture  Medium coarse textured
Grain  Straight grain
Growth Rings  Distinct
Porosity  Diffuse porous
Vessel Size  Solitary and in radial multiples of two to three, medium-sized and visible to the naked eye
Vessel Arrangement  Solitary and in radial multiples of two to three, solitary vessels with circular outline
Vessel Diameter   210 - 280 235
Vessel Element Lenght  455 - 700 700
Perforation  Simple
Pit Outline  Polygonal
Pit Size  Medium to large( 8-12 Ám), vestured.
Vessel Ray Pitting  Alternate and pit outline polygonal
Ray Nature  Fine to moderately broad, rarely visible to the naked eye moderately numerous.
Ray Arrangement/Type  One to three cell wide, homogeneous wholly made up of procumbent cells.
Ray Number  5 - 7
Ray Height  190 - 840 480
Fibre Walls  Thick walled, non-septate,
Fiber Length 
Modulus of Rupture in kg/cm2 (Green)  1093.8
Modulus of Elasticity in kg/cm2 (Green)  159200
Modulus of Rupture kg/cm2 (Dry)  1401.1
Modulus of Elasticity in kg/cm2 (Dry)  175600
Uses  Piles, bridge girders, docking and dock work, high quality furniture. It has a high resistance to abrasion and hence suitable for work where abrasion is a problem.
  • Tree Image
  • Timber Gross View
  • TS (100X)
  • TLS(100X)
  • RLS(100X)

College of Forestry - KAU