USDA Forest Service
Forest Products Laboratory
One Gifford Pinchot Drive
Madison, WI 53705-2398
Wood Technical Fact Sheet
Other Common Names: Parasolier (Ivory Coast), N'Govoge (Sierra Leone), Doe, Govwi (Liberia).
Distribution: Found from Sierre Leone to Angola and eastward to Uganda; typical in secondary forests, common on old farms, short-lived. May form almost pure stands and is suitable for plantation culture.
The Tree: May reach a height of 100 ft; bole slender and rather straight, 20 to 40 ft in length; trunk diameters mostly 1 to 3 ft. Prop roots may extend to 9 ft and more above the base. Tree can spread vegetatively by means of aerial runners.
General Characteristics: Wood pale yellow, pale brown, or whitish, heartwood is not distinct from sapwood. Texture coarse; grain straight, luster rather high.
Weight: Basic specific gravity (ovendry weight/green volume) 0.18 to 0.28; air-dry density 14 to 21 pcf.
Mechanical Properties: (2-cm standard)
Moisture content Bending strength Modulus of elasticity Maximum crushing strength
(%) (Psi) (1,000 psi) (Psi)
12% (46) 4,600 525 2,620
12% (47) 7,700 1,080 3,620
Amsler toughness 40 to 120 in.-lb at 12% moisture content (2-cm specimen).
Drying and Shrinkage: No information on drying characteristics. A kiln schedule similar to T12-D5 has been suggested. Shrinkage green to ovendry: radial 2.2%; tangential 7.0%; volumetric 9.8%. Reported to be moderately unstable when manufactured.
Working Properties: Saws well, but difficult to plane because of low density, difficult to finish.
Durability: Wood has poor durability and is prone to mold and stain.
Preservation: Sapwood is permeable; heartwood resistant to impregnation.
Uses: Modelmaking, insulation, toys, floats (fishnets, rafts), suitable for high-yield pups.
Additional Reading: (3), (46), (47)