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UXI (Endopleura uchi)
Trade Name
Uxi
Scientific Name
Endopleura uchi (Huber) Cuatrec.
Family
HUMIRIACEAE
Common Names
Pururu (Brazil); Cumatê (Brazil); Axuá (Brazil); Uxi-Liso (Brazil); Uxi (Brazil); Paruru (Brazil); Cumaru-Verdadeiro (Brazil); Atanã (Brazil)
Scientific Name Synonyms
Sacoglottis uchi Huber
Description Of The Tree
Botanical Description
E. uchi develops cylindrical and straight stems with an average commercial length of 9 m and an average trunk diameter of about 50 cm.
Wood Identification
Anatomic Description Of Wood
Vessels exclusively solitary (over 90%). Tangential diameter of vessel lumina 200 micras or more (large). Vessels per mm2 less than 6 (rare). Multiple perforation plates. Apotracheal axial parenchyma diffuse and/or diffuse in aggregates. Axial parenchyma in discontinuous tangential lines. Prismatic crystals in chambered axial parenchyma cells and/or in fibers. Rays more than 10 per mm (abundant). Fibers with distinctly bordered pits.
Availability
Cites Status
Unrestricted
General Wood Description
Odor
It has no characteristic odor or taste.
Color
Heartwood and sapwood are slightly distinct. Both are reported to be light reddish-brown.
Grain
This species is reported to have straight grain.
Texture
The wood is typically medium in texture.
Luster
The wood is described as moderate in luster.
Resistance To Impregnation
The heartwood is untreatable, but the sapwood is reported to be easy to preserve with creosote or CCA salts.
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.78
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.89
Total shrinkage Tangential (Saturated to 0%MC) (%)
9.6
Total shrinkage Radial (Saturated to 0%MC) (%)
6.4
Recommended Dry Kiln Schedule
BR-B
Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)
1.5
Wood Chemical Properties
Wood Mechanical Properties
Bending Strength (MOR),12%MC (kgf/cm²)
1567
Stiffness (MOE) 12%MC (kgf/cm²)
156000
Compression parallel to fiber 12%MC (kgf/cm²)
763
Compression perpendicular to fiber 12%MC (kgf/cm²)
133
Shear strength radial 12%MC (kgf/cm²)
191
Janka hardness (side) 12%MC (kgf)
1337
Janka hardness (end grain) 12%MC (kgf)
1059
Workability
Planing
Processing is rated as fair, with bad finishing. Risk of grain tearing and fuzzy surfaces is reported.
Turning
30
Sanding
Sanding operations are rated as fair, with bad finishing. Fuzzy surfaces are reported.
Response To Hand Tools
It is difficult to cut.
REFERENCED USES
End Uses Summary
HOUSING GENERAL, boards, panelling, TURNING, NAVAL CONSTRUCTION, boats
General Housing
- 10 - Silica in Timbers
Boards
- 13 - Dry kiln schedules for commercial woods. Temperate and tropical. Section III. Latin American (Mexico, Central, and South America) Woods–Conventional Temperatures
Paneling
- 18 - W3TROPICOS Missouri Botanical Garden
Turning
- 30 - Embassy of Honduras in Japan
Shipbuilding
- 55 - Tropical Timber Atlas of Latin America
Boats
- 56 - Manual de Identificación de Especies Forestales de la Subregión Andina.
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