USDA Forest Service
Forest Products Laboratory
One Gifford Pinchot Drive
Madison, WI 53705-2398
Wood Technical Fact Sheet
syn. Chrysophyllum africanum
Other Common Names: Longui rouge (Congo-Brazzaville).
Distribution: From Sierra Leone to the Congo region and Angola; found in rain forest and transitional formations, often planted for its edible fruits.
The Tree: May reach a height of 70 to 100 ft; bole up to 40 ft in length, straight, usually fluted, low buttresses; trunk diameters up to 4 ft.
General Characteristics: Heartwood whitish when first felled, turning a pink buff to an olive yellow, and finally a yellowish brown; not demarcated from the sapwood. Texture fine to medium; grain straight to occasionally interlocked; luster rather low; wood contains a pale brown gum.
Weight: Basic specific gravity (ovendry weight/green volume) about 0.63; air-dry density 48 pcf.
Mechanical Properties: (2-cm standard)
Moisture content Bending strength Modulus of elasticity Maximum crushing strength
(%) (Psi) (1,000 psi) (Psi)
12% (46) 18,700 2,300 9,850
12% (46) 15,200 1,820 10,700
Amsler toughness 240 in.-lb for dry material (2-cm specimen).
Drying and Shrinkage: Most species of this genus season well with little or no degrade. Kiln schedule T6-D2 is suggested for 4/4 stock and T3-D1 for 8/4. Shrinkage green to ovendry: radial 5.8%; tangential 8.1%; volumetric 14.0%.
Working Properties: Easy to saw, machines well and dresses to a smooth finish, does not split in nailing, good gluing properties; peels and slices satisfactorily.
Durability: Durability low and prone to termite attack.
Preservation: Treatable by pressure processes.
Uses: General construction, flooring, furniture components, veneer and plywood, joinery. Seeds produce an edible oil.
Additional Reading: (3), (46)