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MEDANG (Cinnamomum iners)
Trade Name
Medang
Scientific Name
Cinnamomum iners Reinw. ex Blume
Family
LAURACEAE
Common Names
Teja badak; Tedja; Singga betina; Medang tija; Medang; Lelang; Kitedja; Kemangi; Kayu manis; Kajoe tedja; Cinnanmon; Clove cinnamon (United Kingdom); Ki teja (Indonesia); Phayaprap (Thailand); Kradangnga (Thailand); Chiat (Thailand); Chouang (Laos); Hmanthin (Myanmar); Namog (Philippines); Medang teja (Malaysia); Medang kalong (Indonesia); Wild cinnamon (United Kingdom); Wild cinnamon (United States of America); Clove cinnamon (United States of America); Kayu manis hutan (Indonesia)
Description Of The Tree
Botanical Description
It is a medium-sized tree up to 24 m tall. The bole is up to 60 cm in diameter.
Natural Habitat
Cinnamomum iners is common in primary and secondary lowland and hill forests, up to 1,200 m of altitude.
Non Timber Uses
Essential oils are obtained by steam distillation of medang.
Wood Identification
Anatomic Description Of Wood
Tyloses common. Vessels per mm2 more than 20 (very abundant). Vessel-ray pits reticulate and/or foraminate. Simple perforation plates. Intervessel pits medium, 7 to 10 micras. Apotracheal axial parenchyma diffuse and/or diffuse in aggregates. Paratracheal axial parenchyma scanty and/or vasicentric. Occasionally axial parenchyma lozenge-aliform. 4 to 10 rays per mm (medium). Oil and/or mucilage cells associated with the axial and/or ray parenchyma (idioblasts). Body ray cells procumbent with mostly 2 to 4 rows of upright and/or square marginal cells (Kribs-II). Fibers with simple to minutely bordered pits.
Availability
Cites Status
Unrestricted
General Wood Description
Odor
Usually the wood has a persistent camphor-like odor.
Color
The heartwood varies in color from grayish-green to pinkish, reddish or pale brown on exposure, and is usually not distinctly demarcated from the straw-colored, pale pink or pale brown sapwood.
COLOR INDEX (1=Black, 7=Light yellow,white)
5
Grain
The grain is straight to moderately interlocked.
Texture
Texture is moderately fine and even.
Natural Durability
Cinnamomum is considered as non-durable to moderately durable when in contact with the ground.
Natural durability index (1= Very high durability, 7=Vey low durability)
6
Resistance To Impregnation
The heartwood of this species is reported to be impermeable.
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.52
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.57
Total shrinkage Tangential (Saturated to 0%MC) (%)
8.6
Total shrinkage Radial (Saturated to 0%MC) (%)
4.5
Drying Defects
Ease of Drying: Air seasoning is reported to be difficult. Air drying 4 cm thick boards from green to 15% moisture content takes about 5 months. Drying Defects: It is prone to end and surface checking and has a slight tendency to twist. Kiln Schedules: A mild kiln schedule is recommended although some checking (sometimes severe) cannot be avoid. Kiln drying from green to 12% moisture content takes 5-6 days.
Recommended Dry Kiln Schedule
US-T10-D2
Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)
1.9
Wood Chemical Properties
Wood Mechanical Properties
Bending Strength (MOR),12%MC (kgf/cm²)
789
Stiffness (MOE) 12%MC (kgf/cm²)
102511
Compression parallel to fiber 12%MC (kgf/cm²)
423
Compression perpendicular to fiber 12%MC (kgf/cm²)
61
Shear strength radial 12%MC (kgf/cm²)
71
Janka hardness (side) 12%MC (kgf)
448
Workability
Sawing
Sawing of this species is reported to be rather easy.
Machining
This species is easy to machine.
Nailing
This wood has good nail holding characteristics.
Finishing
Finishing of this wood is easy.
Coatings
This species is reported to be easy to paint or varnish.
Response To Hand Tools
It has a good response to hand tools.
REFERENCED USES
End Uses Summary
HOUSING GENERAL, panelling, FURNITURE AND CABINETS, cabinets, PLYWOOD AND VENEER, TOOLS, OTHER AND MUSICAL INSTRUMENTS, paper
General Housing
- 10 - Silica in Timbers
Paneling
- 18 - W3TROPICOS Missouri Botanical Garden
Furniture Cabinets
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Cabinet
- 24 - Empire Timbers
Panels, Veneers
- 25 - Directory of Timber Trade Malaysia
Tools
- 42 - Utilización Industrial de Nuevas Especies Forestales en el Perú.
Paper
- 82 - Compilation of Data on the Mechanical Properties of Foreign woods (Part 2) Central and South America.
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