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Black poisonwood
Black poisonwood (Metopium brownei)

Family: Anacardiaceae

Common names: Black poison, Black poisonwood, Boarwood, Bois mulatre, Boxcheche, Bumwood, Burn wood, Cedro prieto, Chachin, Chechem, Chechem negro, Chechen, Cochinilla, Cochinillo, Coral sumach, Cotinillo, Doctor gum, Florida poisontree, Guao, Guao de costa, Guao de peadero, Hog doctor, Hog gum, Hog plum, Honduras walnut, Jamaica sumach, Kabal'chechem, Manceniller, Mountain manchineel, Mulatre, Palo de rosa, Papayo, Papyo, Poison tree, Poison wood, Poisontree

Distributed in: Bahamas, Belize, Cuba, Dominican Republic, Guatemala, Haiti, Honduras, Jamaica, Mexico, Netherlands, Puerto Rico [US], United States (Central America, Latin America, North America, Oceania and S.E. Asia)

Distribution overview: The species occurs in the Dominican Republic, Cuba, Jamaica, northern Guatemala, Belize, and from the Yucatan to Vera Cruz in Mexico. It is often found growing alongside Sapodilla (Manilkara zapota) in calcareous soils.

Common uses: Boxes and crates, Bridge construction, Cabinetmaking, Chairs, Charcoal, Chests, Concealed parts (Furniture), Core Stock, Decorative veneer, Desks, Dining-room furniture, Domestic flooring, Dowell pins, Dowells, Drawer sides, Factory flooring, Figured veneer, Fine furniture, Floor lamps, Flooring, Furniture , Furniture components, Furniture squares or stock, Furniture, Hatracks, Heavy construction, Kitchen cabinets, Living-room suites, Office furniture, Paneling, Parquet flooring, Piling, Plain veneer, Plywood, Posts, Radio - stereo - TV cabinets, Railroad ties, Rustic furniture, Stools, Sub-flooring, Tables , Turnery, Utility furniture, Vehicle parts, Veneer, Veneer: decorative, Wardrobes

Product sources: A lesser-known species, Black poisonwood is currently under consideration and exploration by timber merchants as a possible substitute for more exotic and endangered species.

Environment profile: Abundant

Tree size: Trunk diameter is 100-150 cm

Colors: the heart isYellow, Yellow to golden-yellow to orangeand the sapwoodYellow, Yellowish brown.The grain isWavy, the textureUniformand the lusterSlightly lustrous

Natural durability: Susceptible to marine borer attack, Very durable

Odor: No specific smell or taste

Kiln Schedules: T2 - C2 (4/4 - 6/4) US

Drying Defects: Severe twisting/warping, Splitting

Ease of Drying: Moderately Difficult to Difficult

Tree Identification: Bole/stem form is straight

Comments: Careful selection and matching is essential because of wide color variations.General finishing qualities are rated as good Wood is attractive, hard, and dense

Boring: Difficult

Cutting Resistance: Fairly Difficult to Very Difficult to saw

Gluing: Glues well

Nailing: Possible if prebored, Very Good to Excellent

Planing: Poor to Very Poor The wood responds well to sharp tools in most machining operations.

Resistance to Impregnation: Resistant sapwood

Resistance to Splitting: Poor

Response to hand tools: Easy to machine

Routing recessing: Satisfactory routing results

Sanding: Very Good to Excellent Results

Veneering qualities: Veneers easily, Veneers moderately easy

Screwing: Possible if prebored ; Turning: Good results

Polishing: Very Good to Excellent; Staining: Takes lacquer finishes well, but responds poorly to polyurethane ; Varnishing: Very Good to Excellent;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity 0,74
Density 1009 kg/m3
Bending Strength kg/cm2
Crushing Strength kg/cm2
Hardness 426 kg
Impact Strength cm
Shearing Strength kg/cm2
Stiffness 1000 kg/cm2
Tangential Shrinkage 7 %
Radial Shrinkage 4 %
Weight 881 833 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Density 63 lbs/ft3
Hardness 941 lbs
Specific Gravity 0.74
Weight 55 52 lbs/ft3
Radial Shrinkage 4 %
Tangential Shrinkage 7 %
Volumetric Shrinkage 10 %

Density (dry weight) = 53-60 lbs/cu. ft.
Shrinkage, Tangential = fairly large
Shrinkage, Radial = fairly large
Resists denting and marring
Hardness (side grain) = medium
Density = very high
Density (dry weight) = 61-67 lbs/cu. ft.

Belize,1946,42 Secondary Hardwood Timbers of British Honduras,British Honduras Forest Department Bulletin,No.1Britton, N.L., Millspaugh, C.F.,1920,The Bahama Flora,Britton & Millspaugh,New YorkFlynn Jr., J.H. Metopium brownii - Chechem. In A Guide to Useful Woods of the World. Flynn Jr., J.H., Editor. King Philip Publishing Co., Portland, Maine. 1994. Page 234-235.Fors, A.J.,1965,Maderas Cubanas,Inst. Nac. Ref. Agraria La HabaraKribs, D.A.,1950,Commercial and Foreign Woods on the American Market (a manual to their,structure, identification, uses and distribution,U.S.A. Penn. State College, Tropical Woods LaboratoryLittle, E.L., Wadsworth, F.H.,1964,Common Trees of Puerto Rico and the Virgin Islands,U.S.A. Department of Agriculture, Agriculture Handbook,No.249Pennington, T.D., Sarukhan, J.,1968,Manual para la Identificacion de campo de los Principales Arboles,Tropicales de Mexico,Inst. Nac. Inv. For. MexicoPerpetua Hardwoods.Sea Star Trading Co. - Purveyors of Fine Wood.Newport, Oregon.Personal Communication, 1993.Record, S.J., Hess, R.W.,1943,Timbers of the New World,Yale University PressRecord, S.J., Mell, C.D.,1924,Timbers of Tropical America,Yale Univ. PressRecord, S.J.,1939,American Woods of the Family Anacardiaceae,Tropical Woods,8(60,pp11-45Saks, E.V.,1954,Tropical Hardwoods for veneer Production in Mexico,Caribbean Forester,15(3&4, pp112-9Schiffino, J.,1945,Riqueza Forestal Dominicana (Three volumes,Secretaria de Estado de Agric. Ind. y TrabajoSwabey, C.,1941,The Principal Timbers of Jamaica,Department of Science and Agriculture Jamaica Bulletin No.29Tim Mahoney. Handloggers Hardwood Lumber, Larkspur, California.Personal Communication, 1993.WARP. 1995. Getting to Know LKS: Chechem - Metopium brownei. Published Results of Test Conducted by Students at the Woodworking Centre of Ontario, Conestoga College under the Supervision of Dennis Harlock and John Buss. Understory, Volume 5, Number 1, Fall/Winter 1995. Page 9.Wood, B., Calnan, D.,1976,Toxic Woods,British Journal of Dermat 94 Suppl. 13
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