Timbers of Kerala

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Scientific Name  Cassia siamea Lamk
Trade Name 
Local Name  Thagara, Manja-Konna
Family  Caesalpiniaceae
Tree Size  Medium
Tree Height ( m )  10 -
Tree Diameter ( cm )  45 -
Tree Distribution  Native of South East Asia; planted as avenue trees
Sapwood-Heartwood Distinction  Distinct
Sapwood Colour  Yellowish-white to greyish brown
Heartwood Colour  Dark brown to black with lighter streaks
Hardness  Moderately hard to hard
Specific Gravity Based on Weight Over-dry and Volume Green 
Weight  Heavy to very heavy
Weight(Kg)/cubic meter at 12% Moisture Content  815 -
Texture  Coarse
Grain  Slightly interlocked
Growth Rings  Indistinct
Porosity  Diffuse porous
Vessel Size  Large, medium and small
Vessel Arrangement  Mostly solitary or in radial multiples
Vessel Diameter   -
Vessel Element Lenght  -
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)  769.4
Modulus of Elasticity in kg/cm2 (Green)  105000
Modulus of Rupture kg/cm2 (Dry)  866.3
Modulus of Elasticity in kg/cm2 (Dry)  116500
Uses  General construction; inlay of furniture; tool handles;walking sticks

College of Forestry - KAU