Timbers of Kerala

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Scientific Name  Alstonia scholaris
Trade Name  Shaitan wood
Local Name  Ezhilam-pala
Family  Apocyanaceae
Tree Size  Medium to large
Tree Height ( m )  30 -
Tree Diameter ( cm )  110 -
Tree Distribution  Southern moist mixed deciduous, moist teak bearing forests
Sapwood-Heartwood Distinction  Not distinct
Sapwood Colour  White to yellowish white or pale brown, often discoloured due to sap stain
Heartwood Colour  White to yellowish white or pale brown, often discoloured due to sap stain
Hardness  Soft
Specific Gravity Based on Weight Over-dry and Volume Green 
Weight  Light to very light
Weight(Kg)/cubic meter at 12% Moisture Content 
Texture  Medium to Fine
Grain  Straight
Growth Rings  Indistinct
Porosity  Diffuse porous
Vessel Size  medium to small
Vessel Arrangement  Occasionally solitary, mostly radial multiples of two, three or often 5
Vessel Diameter   -
Vessel Element Lenght  -
Perforation 
Pit Outline 
Pit Size 
Vessel Ray Pitting 
Ray Nature  fine to very fine, closely spaced
Ray Arrangement/Type 
Ray Number  -
Ray Height  -
Fibre Walls 
Fiber Length 
Modulus of Rupture in kg/cm2 (Green)  361
Modulus of Elasticity in kg/cm2 (Green)  63100
Modulus of Rupture kg/cm2 (Dry)  466
Modulus of Elasticity in kg/cm2 (Dry)  70400
Uses  Class III plywood and veneers; packing cases and boxes; match splints; pencil slats; wooden footwear.


College of Forestry - KAU