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CURUPAY (Anadenanthera colubrina)
Trade Name
Curupay
Scientific Name
Anadenanthera colubrina (Vell.) Brenan
Family
LEGUMINOSAE
Common Names
Cebil Colorado; Cebil; Angico Preto (Brazil); Curupay (Paraguay)
Scientific Name Synonyms
Mimosa colubrina Vell.; Anadenanthera macrocarpa (Benth) Brenan; Acacia colubrina Mart.
Description Of The Tree
Botanical Description
The tree reaches a height of 25 m, with a diameter of 110 cm, it does not present buttresses. The logs are reported to be straight and cylindrical.
Natural Habitat
A tree of seasonally dry climates, occurring in caatinga, cerrado and dry forest on deep soils. It is found between 400 and 1,600 m of altitude, on well drained soils.
Natural Distribution
This species is reported in the Chaco area in Argentina, Bolivia, Brazil and Paraguay, and also in Peru.
Non Timber Uses
Tannins are found in the bark. The seeds are reported to have narcotic effects.
Wood Identification
Anatomic Description Of Wood
Wood diffuse porous. Vessels solitary and in short radial multiples. Occasionally tangential diameter of vessel lumina 100 micras or less. Vessels per mm2 10 to 20 (abundant). Simple perforation plates. Vessel-ray pits similar to intervessel pits in size and s Axial parenchyma in marginal or in seemingly marginal bands. Paratracheal axial parenchyma scanty and/or vasicentric. Axial parenchyma confluent. Prismatic crystals in non-chambered axial parenchyma cells. Prismatic crystals in chambered axial parenchyma cell 4 to 10 rays per mm (medium). Rays non-storied. Larger rays more than 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 and taste are reported to be indistinct.
Color
The sapwood is differentiated, it is white yellowish color, the heartwood is reddish brown.
COLOR INDEX (1=Black, 7=Light yellow,white)
3
Grain
It has interlocked grain.
Texture
The texture of this species is reported to vary from fine to medium.
Luster
Timber of this species is moderate in luster.
Natural Durability
It is reported to be very durable.
Natural durability index (1= Very high durability, 7=Vey low durability)
1
Resistance To Impregnation
The heartwood is untreatable.
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.80
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.92
Total shrinkage Tangential (Saturated to 0%MC) (%)
7.9
Total shrinkage Radial (Saturated to 0%MC) (%)
3.7
Recommended Dry Kiln Schedule
US-T8-B3; UK-G
Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)
2.1
Wood Chemical Properties
Wood Mechanical Properties
Bending Strength (MOR),12%MC (kgf/cm²)
1737
Stiffness (MOE) 12%MC (kgf/cm²)
183000
Compression parallel to fiber 12%MC (kgf/cm²)
790
Shear strength radial 12%MC (kgf/cm²)
270
Janka hardness (side) 12%MC (kgf)
1482
Workability
Sawing
For this species reinforced cutting tools are recommended.
Machining
Machining operations are fair to difficult.
Planing
Planing is reported to be difficult.
Boring
It is difficult to bore.
REFERENCED USES
End Uses Summary
EXTERIOR GENERAL, poles, paling, stakes posts, crossties, HOUSING GENERAL, beams, joists, flooring, steps, CONTAINERS, cooperage, NAVAL CONSTRUCTION
Exterior General
- 1 - Tabela de resultados de ensaios fisicos e mecanicos
Poles
- 3 - Estudo dendrologico e determinacao das caracteristicas fisicas e mecanicas do genipapo (Genipa americana)
Paling Fence Pickets
- 4 - Estudo dendrologico e determinacao das caracteristicas fisicas e mecanicas da bicuiba
Stake Posts
- 5 - Propriedades fisicas e mecanicas da madeira e do contraplacado de Pinus elliottii
Crossties
- 8 - Maderas latinoamericas. III, Podocarpus standleyi ,Podocarpus oleifolius, Drims granadensis, Magnolia poasana y Didymopanax pittieri
General Housing
- 10 - Silica in Timbers
Beams
- 11 - Prospect: The wood database
Joists
- 12 - Tropical timbers of the world. Part I-Tropical American Species
Flooring
- 14 - Handbook of Hardwoods
Steps
- 17 - Tree Conservation Database
Containers
- 50 - Properties of imported tropical woods
Cooperage
- 51 - Recopilacion de propiedades mecanicas de maderas creciendo en Chile
Shipbuilding
- 55 - Tropical Timber Atlas of Latin America
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