Timbers of Kerala

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Scientific Name  Cassia fistula L.
Trade Name  Rajbrikh
Local Name  Kanikkonna
Family  Leguminosae
Tree Size  Small to medium
Tree Height ( m )  8 - 15
Tree Diameter ( cm )  40
Tree Distribution  Southern dry mixed deciduous,Moist teak bearing and Southern moist mixed deciduous forests
Sapwood-Heartwood Distinction  Fairly distinct
Sapwood Colour  Whitish buff
Heartwood Colour  Yellowish red
Hardness  Moderately hard
Specific Gravity Based on Weight Over-dry and Volume Green  0.74
Weight  Heavy to very heavy
Weight(Kg)/cubic meter at 12% Moisture Content  833
Texture  Medium coarse textured
Grain  Straight to slightly interlocked grain
Growth Rings  Rather distinct
Porosity  Diffuse porous
Vessel Size  Small to medium sized
Vessel Arrangement  Solitary or in radial multiples of two to three,rarely in clusters of 3; filled with yellowish gummy deposits
Vessel Diameter   100 - 170 140
Vessel Element Lenght  240 - 420 420
Perforation  Simple
Pit Outline  Elliptical
Pit Size  Large(8-11 Ám),vestured
Vessel Ray Pitting  Alternate and pit outline elliptical
Ray Nature  Fine to moderately broad,numerous and closely spaced
Ray Arrangement/Type  1-3 cell seriate,homogeneous,wholly made up of procumbent cells
Ray Number  7 - 11
Ray Height  220 - 470 300
Fibre Walls  Thick walled,septate; minute pits on radial walls
Fiber Length 
Modulus of Rupture in kg/cm2 (Green)  960.7
Modulus of Elasticity in kg/cm2 (Green)  118000
Modulus of Rupture kg/cm2 (Dry)  1306.5
Modulus of Elasticity in kg/cm2 (Dry)  161300
Uses  Building construction, plough handles, wheels and shafts of carts, tool handles and charcoal, agricultural implements, bridges, piles & posts, constructional purposes, wooden mallet and carving.
  • Tree Image
  • Timber Gross View
  • TS (100X)
  • TLS(100X)
  • RLS(100X)


College of Forestry - KAU