Timbers of Kerala

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Scientific Name  Dalbergia nigra Fr.All.
Trade Name  Rosewood-Brazilian
Local Name  Palissandre du Bresil (French), Jacaranda de Brasil (Spanish), Cabiuna, Caviuna, Jacaranda (Brazil), Violet (Kerala)
Family  Leguminosae
Tree Size  Large to very large
Tree Height ( m )  38
Tree Diameter ( cm )  90 - 120
Tree Distribution  Latin American countries like Brazil.
Sapwood-Heartwood Distinction  Distinct
Sapwood Colour  Pale in colour
Heartwood Colour  Violet or purplish in colour with dark streaks
Hardness  Moderately hard to hard
Specific Gravity Based on Weight Over-dry and Volume Green  0.8
Weight  Moderately heavy
Weight(Kg)/cubic meter at 12% Moisture Content 
Texture  Coarse textured
Grain  Straight grain
Growth Rings  Not distinct
Porosity  Diffuse porous
Vessel Size  Vessels solitary, moderately large
Vessel Arrangement  solitary with circular vessel outline, filled with dark gummy deposits
Vessel Diameter   210 - 380 260
Vessel Element Lenght  330 - 640 640
Perforation  Simple
Pit Outline  Polygonal
Pit Size  Medium to large(7-12 Ám),vestured
Vessel Ray Pitting  Alternate and pit outline polygonal
Ray Nature  broad to moderately board, moderately numerous and widely spaced
Ray Arrangement/Type  Three to four cells wide, homogenous wholly made up of procumbent cells
Ray Number  5 - 7
Ray Height  530 - 840 680
Fibre Walls  Thin to thick walled, both septate and non-septate.
Fiber Length 
Modulus of Rupture in kg/cm2 (Green) 
Modulus of Elasticity in kg/cm2 (Green) 
Modulus of Rupture kg/cm2 (Dry) 
Modulus of Elasticity in kg/cm2 (Dry) 
Uses  Mainly used in furniture industry because of its attractive figure. Also used for making cabinets and decorative veneer.
  • Tree Image
  • Timber Gross View
  • TS (100X)
  • TLS(100X)
  • RLS(100X)

College of Forestry - KAU