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JATOBA (Hymenaea oblongifolia)
Trade Name
Jatoba
Scientific Name
Hymenaea oblongifolia Huber
Family
LEGUMINOSAE
Common Names
Azucar Huayo (Peru); Jatobá Amarelo (Brazil); Jatoba (Brazil); Jutaí-Cica (Brazil); Jutaí (Brazil); Jatobá-Curuba (Brazil); Jatobá (Brazil)
Scientific Name Synonyms
Hymenaea palustris Ducke; Cynometra zamorana R. Schultes
Description Of The Tree
Botanical Description
The trees are reported to reach heights of 35 m, with trunk diameters ranging from 60 to 80 cm. They develop straight and cylindrical boles.
Natural Habitat
Hymenaea oblongifolia is found in the tropical rain forests, up to 1,200 m of altitude.
Natural Distribution
Brazil, Colombia and Peru.
Wood Identification
Anatomic Description Of Wood
Wood diffuse porous. Vessels solitary and in short radial multiples. Tangential diameter of vessel lumina 200 micras or more (large). Vessels per mm2 less than 6 (rare). Simple perforation plates. Vessel-ray pits similar to intervessel pits in size and shape. O Occasionally axial parenchyma apparent with the naked eye. Axial parenchyma in marginal or in seemingly marginal bands. Axial parenchyma lozenge-aliform. Axial parenchyma aliform. Axial parenchyma confluent. Occasionally axial parenchyma in discontinuous tange Rays 1 to 4 seriate. Homogeneous rays and/or sub-homogeneous rays (all ray cells procumbent). Fibers with simple to minutely bordered pits.
Availability
Cites Status
Unrestricted
General Wood Description
Odor
Odor is reported to be distinct.
Color
The sapwood is clearly differentiated, it is pale brown, the heartwood is yellowish red when dry.
COLOR INDEX (1=Black, 7=Light yellow,white)
4
Grain
The grain is usually straight.
Texture
The texture varies from medium to coarse.
Luster
This wood is frequently moderate in luster.
Natural durability index (1= Very high durability, 7=Vey low durability)
3
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.62
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.69
Total shrinkage Tangential (Saturated to 0%MC) (%)
7.3
Total shrinkage Radial (Saturated to 0%MC) (%)
3.3
Drying Defects
Ease of Drying: Drying is fairly easy; some difficulties could occur when drying too fast. Drying Defects: No particular risks of drying defects, subject to normal drying conditions. Kiln Schedules: The kiln schedule has been tested.
Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)
2.2
Wood Chemical Properties
Wood Mechanical Properties
Bending Strength (MOR),12%MC (kgf/cm²)
1300
Stiffness (MOE) 12%MC (kgf/cm²)
150000
Compression parallel to fiber 12%MC (kgf/cm²)
700
Shear strength radial 12%MC (kgf/cm²)
180
Janka hardness (side) 12%MC (kgf)
808
Workability
Sawing
The response of this wood in sawing is fair to difficult.
Rotary Veneer Cutting
It is interesting for slicing, thermal pretreatments are recommended.
Sliced Veneer
It is interesting for slicing, thermal pretreatments are recommended.
Planing
Planing is reported to be easy.
Moulding
Molding operations are rated as fair.
Turning
30
Boring
Boring operations are rated as fair.
Nailing
It has a good holding of nails, but pre-boring is necessary.
Gluing
This species is easy to glue.
REFERENCED USES
End Uses Summary
HOUSING GENERAL, flooring, parquet, steps, FURNITURE AND CABINETS, cabinets, TURNING
General Housing
- 10 - Silica in Timbers
Flooring
- 14 - Handbook of Hardwoods
Parquet
- 15 - Empire Timbers
Steps
- 17 - Tree Conservation Database
Furniture Cabinets
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Cabinet
- 24 - Empire Timbers
Turning
- 30 - Embassy of Honduras in Japan
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