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Clicking any heading in the main data area (at right) will scroll the page back to this top position. Use the following links to jump to the associated section in the main data. Blunting Effect Common Names Common Uses Countries of Distribution Family Name Grain Heartwood Color Movement in Service Natural Durability Numerical Data References Regions of Distribution Sapwood Color Scientific Name Strength Properties Texture Toxicity Trade Name Tree Identification Tree Size Scientific Name Blepharocarya involucrigera Trade Name Northern bolly gum Family Name Anacardiaceae Common Names Northern bolly gum, Rose butternut Regions of Distribution Oceania and S.E. Asia Countries of Distribution  [VIEW MAP] Australia Common Uses Cabinetmaking, Cooperages, Flooring, Furniture, Paneling Heartwood Color Red Green/grey Brown Pale red to pink Pale brown Brown Sapwood Color Red White to yellow Grain Even Interlocked Straight Figure Weak (figure) Weak figure Straight Interlocked Texture Medium to coarse Natural Durability Susceptible to attack from powder post (Lyctid & Bostrychid) beetles Non durable Toxicity Unspecified toxicity Dermatitic effects Tree Identification Bole/stem form is straight Bole/stem form is cylindrical Bole/stem form is buttressed Tree Size Tree height is 0-10 m Blunting Effect Blunting effect on machining is slight Movement in Service Stable Strength Properties Density (dry weight) = 31-37 lbs/cu. ft. Density (dry weight) = 38-45 lbs/cu. ft. Shrinkage, Tangential = moderate Shrinkage, Radial = small Numerical Data Item Green Dry English Density 35 lbs/ft3 Weight 34 27 lbs/ft3 Radial Shrinkage 3 % Tangential Shrinkage 7 % Item Green Dry Metric Density 560 kg/m3 Weight 544 432 kg/m3 Radial Shrinkage 3 % References Bolza, E.,1976,Timber and Health,Div. Building Res. C.S.I.R.O. Australia Budgen, B.,1981,Shrinkage and density of some Australian and South-East Asian Timbers,C.S.I.R.O. Div. building Res. Tech Paper(2nd Series) No.38 Cause, M.L.; Rudder, E.J. and Kynaston, W.T.,1989,Queensland Timbers Their Nomenclature, Density, and Lyctid Susceptability,Queensland Department of Forestry, Technical Pamplet No.2 Francis, W.D.,1951,Australian Rain-forest Trees,Commonwealth of Australia - Forestry and Timber Bureau Patterson, D.,1988,Commercial Timbers of the World, 5th Edition,Gower Technical Press