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TANIMBUCA (Buchenavia oxycarpa)
Trade Name
Tanimbuca
Scientific Name
Buchenavia oxycarpa (Mart.) Eichler
Family
COMBRETACEAE
Common Names
Granadillo (Puerto Rico); Biridiba (Brazil); Amarillo (Venezuela); Isulleja (Ecuador); Blanquillo (Bolivia)
Scientific Name Synonyms
Terminalia oxycarpa Mart.; Buchenavia punctata Eichler
Description Of The Tree
Botanical Description
Trees of the B. oxycarpa are reported to be medium to large sized, reaching heights up to 20 m, with commercial lengths of 15 m and diameters at breast height from 40 to 70 cm.
Natural Habitat
This species is reported in subtropical rain forests.
Natural Distribution
The geographical range for this species is the Amazonian forests. In Brazil it is reported to grow in the Para state.
Wood Identification
Anatomic Description Of Wood
Wood diffuse porous. Vessels solitary and in short radial multiples. Tangential diameter of vessel lumina 150 to 200 micras (medium). Vestured pits. Vessels per mm2 10 to 20 (abundant). Simple perforation plates. Vessel-ray pits similar to intervessel pits in s Axial parenchyma in marginal or in seemingly marginal bands. Axial parenchyma confluent. Occasionally axial parenchyma in discontinuous tangential lines. Prismatic crystals in non-chambered axial parenchyma cells. Styloids and/or elongate crystals in axial pa Rays exclusively uniseriate. Crystal sand in ray cells. Prismatic crystals in the ray cells. Occasionally heterogeneous rays and/or multiseriate heterogeneous rays. Body ray cells procumbent with one row of upright and/or square marginal cells (Kribs-III). Fibers with simple to minutely bordered pits.
Availability
Cites Status
Unrestricted
General Wood Description
Odor
Odor and taste are reported to be indistinct.
Color
The sapwood is light yellow, the heartwood is very light brown color.
COLOR INDEX (1=Black, 7=Light yellow,white)
4
Grain
Straight or interlocked grain is often found in this species.
Texture
This species is usually reported to have a fine texture.
Luster
This species is reported to have a moderate to high luster.
Natural Durability
This species is reported as durable, especially when it is not in contact with the ground.
Natural durability index (1= Very high durability, 7=Vey low durability)
1
Resistance To Impregnation
It is a moderately permeable wood, with good preservative absorption.
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.82
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.94
Total shrinkage Tangential (Saturated to 0%MC) (%)
10.2
Total shrinkage Radial (Saturated to 0%MC) (%)
5.2
Drying Defects
Ease of Drying: It is reported to dry slowly. Drying Defects: Risk of checking and warping. Casehardening is also reported. Kiln Schedules: Although it has no important risk, careful drying is recommended.
Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)
2.0
Wood Chemical Properties
Wood Mechanical Properties
Bending Strength (MOR),12%MC (kgf/cm²)
1355
Compression parallel to fiber 12%MC (kgf/cm²)
644
Janka hardness (side) 12%MC (kgf)
1417
Workability
Sawing
The response of this wood in sawing is fair.
Machining
The workability of this species is reported to be fair.
Planing
Planing operations are reported to be fair.
Boring
The response of this species to boring operations is fair.
Finishing
Finishing of this species is reportedly easy.
Substitute Species
It is reported to have similar characteristics to "white oak" (Quercus alba).
REFERENCED USES
End Uses Summary
EXTERIOR GENERAL, crossties, HOUSING GENERAL, flooring, steps
Exterior General
- 1 - Tabela de resultados de ensaios fisicos e mecanicos
Crossties
- 8 - Maderas latinoamericas. III, Podocarpus standleyi ,Podocarpus oleifolius, Drims granadensis, Magnolia poasana y Didymopanax pittieri
General Housing
- 10 - Silica in Timbers
Flooring
- 14 - Handbook of Hardwoods
Steps
- 17 - Tree Conservation Database
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