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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.

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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.

  • Wood Macro Photo Tangential Plane
  • Wood Micro Photo Of Transversal Section

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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