Timbers of Kerala

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Scientific Name  Schleichera oleosa (Lour.) Oken
Trade Name  Kusum
Local Name  Poovam
Family  Sapindaceae
Tree Size  Medium to large
Tree Height ( m )  15 -
Tree Diameter ( cm )  100 -
Tree Distribution  West coast semi-evergreen, Moist teak bearing and Southern secondary moist mixed deciduous foests
Sapwood-Heartwood Distinction  Distinct
Sapwood Colour  Greyish white
Heartwood Colour  Light reddish brown
Hardness  Very hard
Specific Gravity Based on Weight Over-dry and Volume Green 
Weight  Very heavy
Weight(Kg)/cubic meter at 12% Moisture Content  1090 -
Texture  Medium
Grain  Straight to somewhat interlocked or irregular
Growth Rings  Fairly distinct
Porosity  diffuse porous
Vessel Size  Medium to small sized
Vessel Arrangement  Few to moderately numerous, somewhat unevenly distributed, mostly solitary and in radial multiples of 2 or 3
Vessel Diameter   -
Vessel Element Lenght  -
Pit Outline 
Pit Size 
Vessel Ray Pitting 
Ray Nature  Very fine, numerous, closely spaced
Ray Arrangement/Type 
Ray Number  -
Ray Height  -
Fibre Walls 
Fiber Length 
Modulus of Rupture in kg/cm2 (Green)  1126.6
Modulus of Elasticity in kg/cm2 (Green)  162900
Modulus of Rupture kg/cm2 (Dry)  1582.9
Modulus of Elasticity in kg/cm2 (Dry)  181000
Uses  Treated timber can be used as buttrusses and posts for construction purposes; tool handles; railway sleepers; agricultural implements; carts and carriages; pounders; tent accessories

College of Forestry - KAU