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Common Names
Common Uses
Countries of Distribution
Cutting Resistance
Drying Defects
Ease of Drying
Family Name
Gluing
Grain
Heartwood Color
Kiln Drying Rate
Nailing
Natural Durability
Numerical Data
Painting
Planing
Polishing
References
Regions of Distribution
Resistance to Impregnation
Response to Hand Tools
Sapwood Color
Scientific Name
Staining
Strength Properties
Synonyms
Texture
Trade Name
Tree Identification
Tree Size
Turning
Varnishing
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Synonyms
Schrebera argyrotricha, Schrebera gilgiana, Schrebera mazoensis, Schrebera obliquifoliolata
Common Names
Agawa, Gakawa, Kabigiriet, Kakaruet, Kakawa, Msegembe, Mutoma, Wildejasmyn, Wing-leaved wooden pear
Regions of Distribution
Africa
Countries of Distribution
[VIEW MAP]
Kenya, Uganda
Common Uses
Agricultural implements, Cabinetmaking, Flooring: industrial heavy traffic, Fuelwood, Furniture, Heavy construction, Joinery, Mathematical instruments, Mine timbers, Sporting Goods, Tool handles, Toys, Turnery, Vehicle parts, Veneer: decorative
Heartwood Color
| White |
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| Yellow |
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| Red |
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| Orange |
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| Pink |
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| Brown |
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| Pale brown |
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| White to cream |
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Sapwood Color
| Red |
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| Yellow |
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| White |
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| Paler than heartwood |
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Grain
| Even |
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| Closed |
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| Straight |
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| Wavy |
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Texture
Natural Durability
| Perishable |
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| Moderately durable |
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| Non-durable |
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| Non-resistant to termites |
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| Susceptible to insect attack |
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| Moderately durable |
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| Susceptible to attack from powder post (Lyctid & Bostrychid) beetles |
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Drying Defects
| Distortion |
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| Moderate twist/warp |
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| Moderate end spitting |
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| Moderate cupping |
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Ease of Drying
Kiln Drying Rate
Tree Identification
| Bole/stem form is fluted |
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| Bole/stem form is misshapen |
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Tree Size
| Tree height is 10-20 m |
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| Tree height is 0-10 m |
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Cutting Resistance
Gluing
| Fairly Easy to Very Easy |
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| Easy to glue |
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Nailing
| Fairly Easy to Very Easy |
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| Very Good to Excellent Results |
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| Fair to Good Results |
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| Possible if prebored |
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Planing
| Fairly Easy to Very Easy |
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| Very Good to Excellent Results |
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| Fair to Good Results |
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| Planes well, to a good finish |
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Resistance to Impregnation
| Resistant sapwood |
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| Resistant heartwood |
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| Heartwood is moderately resistant |
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Response to Hand Tools
Turning
| Turns with moderate ease |
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| Finish is generally satisfactory |
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Painting
Polishing
Staining
| Very Good to Excellent Results |
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| Fair to Good Results |
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Varnishing
| Very Good to Excellent Results |
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| Fair to Good Results |
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| Fairly Easy to Very Easy |
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| Good results |
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Strength Properties
| Density (dry weight) = 46-52 lbs/cu. ft. |
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| Shrinkage, Tangential = moderate |
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| Shrinkage, Radial = fairly large |
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| Modulus of Elasticity (stiffness) = medium |
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| Max. crushing strength = medium |
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| Density (dry weight) = 53-60 lbs/cu. ft |
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| Bending strength (MOR) = medium |
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| Shrinkage, Radial = moderate |
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| Shrinkage, Radial = large |
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| Shearing strength (parallel to grain) = medium |
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| Shearing strength (parallel to grain) = low |
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Numerical Data
| Item | Green | Dry | English |
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| Bending Strength | 9310 | 14566 | psi |
| Density | | 50 | lbs/ft3 |
| Maximum Crushing Strength | 3916 | 6397 | psi |
| Shearing Strength | | 1883 | psi |
| Stiffness | 1665 | 1923 | 1000 psi |
| Weight | 49 | 39 | lbs/ft3 |
| Radial Shrinkage | 5 | | % |
| Tangential Shrinkage | 7 | | % |
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| Item | Green | Dry | Metric |
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| Bending Strength | 654 | 1024 | kg/cm2 |
| Density | | 801 | kg/m3 |
| Maximum Crushing Strength | 275 | 449 | kg/cm2 |
| Shearing Strength | | 132 | kg/cm2 |
| Stiffness | 117 | 135 | 1000 kg/cm2 |
| Weight | 785 | 624 | kg/m3 |
| Radial Shrinkage | 5 | | % |
References
Bolza, E., Keating, W.G.,1972,African Timbers - the Properties, Uses and Characteristics of 700 Species,C.S.I.R.O. Div. of Building Research
Dale, I.R., Greenway, P.J.,1961,Kenya Trees and Shrubs,Buchanans Kenya Estates Ltd. Nairobi Hatchards London
Eggeling, W.J.,1940,Indigenous Trees of Uganda,Govt. Printer Entebbe Uganda
Palgrave, K.C.,1977,Trees of Southern Africa,Cape Town South Africa
Wimbush, S.H.,1950,Catalogue of Kenya Timbers,Govt. Printer Nairobi Kenya
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