ARAUCARIA (Araucaria hunsteinii)
Trade Name
Araucaria
Scientific Name
Araucaria hunsteinii K. Schum.
Family
ARAUCARIACEAE
Common Names
Araucaria, Passu pai (Papua New Guinea); Klinki pine; Araucaria (Fiji); Araucaria (Australia); (Papua New Guinea); Araucaria (Malaysia); Araucaria (Indonesia)
Scientific Name Synonyms
Araucaria schumanniana Warb.; Araucaria klinkii Lauterb.
Description Of The Tree
Botanical Description
It is a very large, symmetrical tree up to 90 m tall. The bole is straight, cylindrical and self-pruning up to 35 m or more and up to 300 cm in diameter.
Natural Habitat
Araucaria hunsteinii occurs on well-drained site on a variety of soil, often in sub-montane Fagaceae forest at 520-2100 m altitude. In Papua New Guinea natural stands are no longer being logged on a large scale.
Natural Distribution
Araucaria hunsteinii is found in Papua New Guinea and Irian Jaya (Indonesia). Then, it was introduced on an experimental scale in Australia, Fiji and Peninsular Malaysia.
Plantations Available?
Extensive plantation have already been established and they produce large amounts of timber, especially in Australia, while small scale plantation has been planted in Fiji and Peninsular Malaysia.Small plantations of 8,000 ha exist in Papua New Guinea and it has been introduced to Australia, Fiji and Peninsular Malaysia on an experimental scale. Plantatations are also reported in Thailand, Philippines and South Africa
Non Timber Uses
The wood is lightweight and soft.
Wood Identification
Anatomic Description Of Wood
Rays exclusively uniseriate, 4 to 10 rays per mm (medium).
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Wood Macro Photo Tangential Plane
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Wood Micro Photo Of Transversal Section
Availability
Cites Status
Unrestricted
General Wood Description
Odor
-
Color
The heartwood is from pale brown to pinkish-brown colored and not sharply demarcated from the straw-colored sapwood. Compression wood may occur, showing up as a yellow or brown band along grain
Grain
This species is reported to have straight grain.
Texture
Texture fine, uniform. Figure not marked, but streaks of birds-eye pattern may show up on veneer.
Luster
The wood surface is described as moderate in luster.
Natural Durability
Sapwood is liable to blue-stain and pinhole borer attacks. The timber can be damaged by termites and marine borers.
Natural durability index (1= Very high durability, 7=Vey low durability)
6
Internal Growth Stresses
-
Resistance To Impregnation
The sapwood is permeable, but heartwood is moderately resistant to impregnation.
Wood Physical Properties
Drying Defects
Ease of Drying: Air drying is reported to be good. Drying Defects: Risk of end-splitting and some surface checking.
Recommended Dry Kiln Schedule
UK-J; US-T10-D5S
Wood Chemical Properties
Wood Mechanical Properties
Workability
Sawing
Low to moderate.
Rotary Veneer Cutting
Veneer qualities are excellent. This timber is also reported to be suitable for lamination.
Sliced Veneer
Veneer qualities are excellent. This timber is also reported to be suitable for lamination.
Blunting Effect
-
Machining
Machining of this species is reported to be easy.
Planing
Easy.
Moulding
Easy.
Turning
30
Boring
Easy
Mortising
-
Nailing
This species has good nailing properties.
Gluing
Gluing of this species is easy.
Sanding
Good
Finishing
It is easy to finish.
Staining
It is easy to stain.
Coatings
It is easy to paint or varnish.
Polishing
Good
Steam Bending
-
Response To Hand Tools
It is easy to work with hand tools.
REFERENCED USES
End Uses Summary
HOUSING GENERAL, boards, flooring, panelling, FURNITURE AND CABINETS, PLYWOOD AND VENEER, faces, Decorative veneer, TURNING, SPORTS, PACKING, CONTAINERS, truck bodies, truck flooring, NAVAL CONSTRUCTION, OTHER AND MUSICAL INSTRUMENTS, handicrafts, matches, moldings, paper
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
Flooring
- 14 - Handbook of Hardwoods
Paneling
- 18 - W3TROPICOS Missouri Botanical Garden
Furniture Cabinets
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Panels, Veneers
- 25 - Directory of Timber Trade Malaysia
Faces
- 26 - Annual Review and Assessment of the World Timber Situation 1998-ITTO
Decorative veneer
- 28 - Ministry of Agriculture, Fisheries & Forest of Fiji
Turning
- 30 - Embassy of Honduras in Japan
Sports
- 38 - Annual Review and Assessment of the World Timber Situation 1998-ITTO
Packing
- 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
Truck Body
- 53 - Timbers of the New World
Truck Flooring
- 54 - Bulletin of the Government Forest Experiment Station N.157: Identification of Tropical Woods
Shipbuilding
- 55 - Tropical Timber Atlas of Latin America
Handcraft
- 66 - Maderas latinoamericanas. VII. Caracteristicas anatomicas. propiedades fisicomecanicas, de secado, y tratabilidad de la madera juvenil de Cordia alliodora (Ruiz & Pav. Oken.)
Matches
- 71 - Proprietes physiques et mecaniques des bois tropicaux, premier supplement
Molding
- 79 - Padronização da Nomenclatura Comercial Brasileira das Madeiras Tropicais Amazônicas, Sugestão
Paper
- 82 - Compilation of Data on the Mechanical Properties of Foreign woods (Part 2) Central and South America.
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