USDA Forest Service
Forest Products Laboratory
One Gifford Pinchot Drive
Madison, WI 53705-2398
Wood Technical Fact Sheet
Other Common Names: Abababite, Carnero (Mexico), Tumu (Honduras, Nicaragua), Cocua, Mastate (Panama), Corbon, Cucua, (Colombia), Majagua (Ecuador).
Distribution: From Vera Cruz, Mexico, through Central America and southward to Colombia, Ecuador, and Bolivia.
The Tree: Sometimes up to 100 ft tall with trunk diameters to 37 in. above the buttress.
General Characteristics: Heartwood absent or not clearly distinguishable from the yellowish-white sapwood which becomes brownish or oatmeal on exposure. Luster rather high; texture coarse; grain straight to interlocked; without distinctive odor or taste. A silica content of 7.32% is reported.
Weight: Basic specific gravity (ovendry weight/green volume) 0.33; air-dry density 25 pcf.
Mechanical Properties: (2-in. standard)
Moisture content Bending strength Modulus of elasticity Maximum crushing strength
(%) (Psi) (1,000 psi) (Psi)
12% (64) 6,960 965 NA
Janka side hardness 360 lb.
Drying and Shrinkage: Drying rate is reported to be moderate, dries without degrade due to warping or checking. No data available on kiln schedules. Shrinkage green ovendry: radial 3.8%; tangential 6.9%.
Working Properties: Saws woolly when green; wood difficult to plane smoothly if grain is interlocked. Dulls tools rapidly because of the very high silica content.
Durability: Reported to be perishable in contact with the ground.
Preservation: No information available.
Uses: General construction work (interior). Inner bark has long been used to make blankets, mats, and clothing.
Additional Reading: (56), (64)