USDA Forest Service
Forest Products Laboratory
One Gifford Pinchot Drive
Madison, WI 53705-2398
Wood Technical Fact Sheet
Other Common Names: Feguo, Kabakra (Costa Rica), Berba, Choyba (Panama), Sukune (Guyana), Basri letri, Ombatapo (Surinam), Aimpem, Inare, Muiratinga (Brazil).
Distribution: Bahia, Brazil, through the Amazon region to northeastern Peru, Colombia, and the Guianas.
The Tree: Height to 100 ft, with straight cylindrical boles to 80 ft; trunk diameters 20 to 28 in.
General Characteristics: Heartwood dark brown, somewhat streaked or variegated with black and yellow; sharply demarcated from the wide, golden, lustrous sapwood. Luster medium in heartwood; texture medium; grain straight to roey; without distinctive odor or taste.
Weight: Basic specific gravity (ovendry weight/green volume) 0.68 to 0.76; air- dry density 52 to 58 pcf.
Mechanical Properties: (2-in. standard)
Moisture content Bending strength Modulus of elasticity Maximum crushing strength
(%) (Psi) (1,000 psi) (Psi)
12% (24) 22,800 2,860 12,300
15% (20) 27,800 NA 14,100
Janka side hardness about 2,700 lb for dry material. Forest Products Laboratory toughness 260 in.-lb at 12% moisture content (5/8-in. specimen).
Drying and Shrinkage: The wood dries rapidly and with only slight degrade. Data on dry kiln schedules not available. Shrinkage from green to ovendry: radial 5.4%; tangential 9.2%; volumetric 14.6%.
Working Properties: The wood is rated fair to good in all machining operations but does cause excessive dulling of cutting edges; takes a high natural polish.
Durability: The heartwood is susceptible to attack by decay fungi; sapwood is prone to blue stain.
Preservation: The heartwood is difficult to treat, as is the sapwood.
Uses: Heavy construction, flooring, turnery, and furniture.
Additional Reading: (20), (24), (56)