Wood Encyclopedia: Terminalia

Jul 05, 2023

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Terminalia (brown)

 

Latin name:

 

Terminalia spp.

 

 

English name:

 

BROWN TERMINALIA

 

 

Department name:

 

Combertaceae

 

 

Genus name:

 

Terminalia

 

place name:

 

Brown Terminalia (Papua New Guinea, code TEB), Dafo (Solomon Islands) Homba, Peo, Maranuri, Kopica (Oceania).

 

 

Trees and distribution:

 

Large tree, up to 38M in height and 1.8M in diameter. There are about 250 species in this genus, which are widely distributed in subtropical Africa, America and Asia to Papua New Guinea and the South Pacific, and are mainly imported from Papua New Guinea in batches. There are more than 20 species in Papua New Guinea. According to the color of the wood, they are often divided into three categories: brown terminal, yellow terminal and red brown terminal.

 

 

Construction Features:

 

Bark: about 0.5~1.5cm thick, slightly hard and brittle, easy to peel off in strips. The outer skin is brown; taupe, with regular long longitudinal fissures, which are easy to fall off in small pieces after being exposed to the sun. Inner bark reddish-brown; bast fibers more developed. Cross-section: The difference between heartwood and sapwood is obvious. Heartwood light brown or chocolate brown with a yellowish tinge. Growth rings are prominent. Macro structure: diffuse porous wood. The pores are slightly obvious to the naked eye, few, and slightly larger; mainly single pores, a few radial multiple pores (2~3); with gum. The axial parenchyma is obvious under a magnifying glass, wing-shaped and ring-shaped. It is obvious under the magnifying glass of wood rays, slightly dense and narrow. Sometimes it can be seen that the injured gum road is arranged in a chord direction.

 

 

Tree properties:

 

Glossy. Straight or slightly staggered texture; medium structure, light and soft; low strength; stem shrinkage. Planing and sawing are slightly difficult, and the cut surface is slightly fuzzy; sanding, painting, gluing and nailing performance are good. Not resistant to decay, susceptible to termites. Dries slightly cracked. The air-dried density is 0.46g/cm3.

 

 

Tree use:

 

Suitable for light frame, floor, rotary cut and sliced veneer, plywood, floor, furniture, interior decoration, joinery, etc.

 

 

Identification points:

 

Bark grayish brown, with regular long longitudinal fissures. Heartwood chocolate brown with dark streaks; sapwood pinkish brown with pale yellow. Axial parenchyma wing-like, annular tube bundle-like, with intrusive fillings. Injured gum tracts are arranged chordwise.