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MorototoMorototo
Morototo (Didymopanax morototoni)

Family: Araliaceae

Common names: Ambayguazu, Anonillo, Arbre de Saint Jean, Arriero, Badana, Bigi boesie, Cafetero, Cassavehout, Chancaro blanco, Cordoban, Costilla de danto, Ga, Guitarrero, Higueroton, Jereton, Karoboro, Karohoro, Kasavehout, Macho, Mandioqueira, Marupauba falso, Matchwood, Matetauba, Mor, Morototo, Mountain trumpet, Mucututu, Orumo macho, Saint Jean, Sancha uva, Sun sun, Tinajero, Tobitoutou, Yagrumo, Yagrumo macho, Yarumero

Distributed in: Argentina, Belize, Bolivia, Brazil, Colombia, Columbia, Cuba, Dominican Republic, French Guiana, Guadelope [France], Guatemala, Guyana, Haiti, Honduras, Jamaica, Mexico, Nicaragua, Panama, Paraguay, Puerto Rico [US], Puerto Rico, Suriname, Trinidad and Tobago, Uruguay, Venezuela (Central America, Latin America, Oceania and S.E. Asia)

Distribution overview: Widespread in the wet forests of tropical America, West Indies and southern Mexico to Bolivia, Brazil, Guianas, and Argentina. Characteristic of open forests, edges of savannas, and former clearings.

Common uses: Balusters, Boxes and crates, Building construction, Building materials, Canoes, Casks, Concrete formwork, Construction, Cooperages, Core Stock, Flooring, Food containers, Furniture, General carpentry, Heavy construction, Interior construction, Interior trim, Joinery, Light construction, Matchboxes, Matches, Millwork, Moldings, Musical instruments: percussion, Packing cases, Particleboard, Pencil, Plywood corestock, Plywood, Posts, Pulp/Paper products, Stairworks, Stringers, Structural plywood, Toothpicks, Toys, Trimming, Utility plywood, Veneer, Veneer: decorative, Wainscotting

Product sources: The ITTO reports that the species is a fairly important source of timber. Export potential is rated as fair.

Environment profile: Rare

Tree size: Tree height is 10-20 m

Colors: the heart isWhite to cream, Yellow to golden-yellow to orangeand the sapwoodRed, White to yellow.The grain isWeak figure, the textureModerately fineand the lusterMedium

Natural durability: The heartwood is susceptible to wood staining fungal attack, Very durable

Odor: No specific smell or taste

Kiln Schedules: Drying (speed) is fast

Drying Defects: Severe twisting/warping, Warping can be expected

Ease of Drying: Thick Stock Requires Care

Tree Identification: Bole/stem form is not buttressed

Comments: General finishing qualities are rated as good The wood is similar in properties to the African species Obeche (Triplochiton scleroxylon ).

Blunting Effect: High to severe

Boring: Fairly difficult to very difficult

Carving: Fairly Difficult to Very Difficult

Cutting Resistance: Fairly Difficult to Very Difficult to saw

Gluing: Fairly Easy to Very Easy

Mortising: Fairly Difficult to Very Difficult

Moulding: Good finishing

Movement in Service: Good finishing

Nailing: Pre-Boring Recommended, Satisfactory nailing properties

Planing: Planes well, to a good finish

Resistance to Impregnation: Resistant sapwood

Resistance to Splitting: Excellent

Response to hand tools: Fairly Difficult to Difficult to Work

Routing recessing: Fairly Difficult to Very Difficult

Sanding: Good sanding finish

Veneering qualities: Good gluing qualities, No drying degrade. Dries flat without splitting

Screwing: Good screw holding properties, Pre-boring recommended; Turning: Very Good to Excellent Results

Polishing: Very Good to Excellent;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity 0,41
Density 544 kg/m3
Bending Strength 506 834 kg/cm2
Crushing Strength 18 43 kg/cm2
Hardness 409 kg
Impact Strength cm
Shearing Strength 120 kg/cm2
Stiffness 103 126 1000 kg/cm2
Tangential Shrinkage 8 %
Radial Shrinkage 5 %
Weight 528 400 kg/m3
Maximum Load cm-kg/cm3
Toughness 102 cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 7200 11865 psi
Crushing Strength 268 615 psi
Density 34 lbs/ft3
Hardness 902 lbs
Maximum Crushing Strength 3192 6371 psi
Shearing Strength 1714 psi
Stiffness 1476 1798 1000 psi
Toughness 89 inch-lbs
Specific Gravity 0.41
Weight 33 25 lbs/ft3
Radial Shrinkage 5 %
Tangential Shrinkage 8 %
Volumetric Shrinkage 15 %

Shrinkage, Tangential = fairly large
Shrinkage, Radial = large
Shrinkage, Radial = fairly large
Density (dry weight) = 31-37 lbs/cu. ft.
Shrinkage, Tangential = large
Bending strength (MOR) = medium
Hardness (side grain) = soft
Density (dry weight) = 38-45 lbs/cu. ft.
Shrinkage, Tangential = very small
Shrinkage, Tangential = small
Shrinkage, Tangential = moderate
Shrinkage, Radial = very small
Shrinkage, Radial = small
Shrinkage, Radial = moderate
Shearing strength (parallel to grain) = medium
Shearing strength (parallel to grain) = low
Modulus of Elasticity (stiffness) = very low
Modulus of Elasticity (stiffness) = medium
Modulus of Elasticity (stiffness) = low
Modulus of Elasticity (stiffness) = high
Hardness (side grain) = medium
Density (dry weight) = 23-30 lbs/cu. ft.
Bending strength (MOR) = very low
Bending strength (MOR) = high

Bena, P.,1960,Essences Forestieres de Guyane,Bureau Agricole et Forestier Guyanais GuyanaBerni, C.A., Bolza, E., Christensen, F.J.,1979,South American Timbers - The Characteristics, Properties and Uses of 190,Species,C.S.I.R.O Div. Building ResearchBrazil -, I.B.D.F.,1980,Woods from Tucurui - characteristics and application,The Ag. Ministry Brazilian Institute for Forest DevelopmentCelulosa Argentina,1973,Libro del Arbol,Celulosa Argentina Buenos Aires 3 VolsChichignoud, M., G. Deon, P. Detienne, B. Parant and P. Vantomme.1990.Tropical Timber Atlas of Latin America.International Tropical Timber Organization (ITTO, Centre Technique Forestier Tropical, Division of CIRAD, 45 bis Avenue de la Belle Gabrielle, Nogent-sur-Marne, CEDEX, France.Chudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.Erfurth, T., Rusche, H.,1976,The Marketing of Tropical Wood B. Wood Species from S. American Tropical,Moist Forests,F.A.O. Forestry DepartmentFanshawe, D.B.,1954,Forest Products of British Guiana Part 1 Principal Timbers,Forest Department British Guiana Forestry Bulletin (New Series 2nd,Edition,No.1Fors, A.J.,1965,Maderas Cubanas,Inst. Nac. Ref. Agraria La HabaraLittle, E.L., Wadsworth, F.H.,1964,Common Trees of Puerto Rico and the Virgin Islands,U.S.A. Department of Agriculture, Agriculture Handbook,No.249Longwood, F.R.,1961,Puerto Rican Woods - Their Machining Seasoning and Related Characteristics,U.S.A. Department of Agriculture, Agriculture Handbook,No.205Loureiro, A.A., Freitas da Silva, M.,1968,Catalogo das Madeiras da Amazonia (2 vols,Min. do Ultramar Belem BrasilMarshall, R.C.,1934,Trees of Trinidad and Tobago,Government Printer Port of Spain TrinidadMarshall, R.C.,1939,Silviculture of the trees of Trinidad and Tobago - British West Indies,O.U.P.,LondonOverbeck, W.,1968,Pastas Celulosicas de Madeiras da Amazonia,Inst. de Pesquisas Tecnologicas, Sao Paulo Brasil Publ.,828Record, 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. PressSlooten, H.J. van der,1970,Evaluation Study of eighteen Wood Species from Guyana for Veneer and,Plywood Manufacture,Forest Industries Development Survey FAO Report SF/GUY9 Tech. Report,No.13,U.N.D.P.Takahashi, A.,1975,Compilation of data on the Mechanical Properties of Foreign Woods (Part 2,Central and South America,Shimane University, Japan, Research Report on Foreign Wood No.4Teixeira, D. E., M. A. E. Santana and M. Rabelo de Souza.1988. Amazonian Timbers for the International Market.ITTO Technical Series 1.Brazilian Institute for Forestry Development, Brazil.Venezuela-Laboratories Nacional de Productos Forestates,1974,Caraderisticas, Propiedades y usos de 104 Maderas de los allos Ilanos,occidentales,Min. Ag. y Cria, Universidad de Los andes, Merida, Venezuela Lab.Nac. de,Prod. For.Vink, A.T.,1965,Surinam Timbers,Surinam Forest Service Paramaribo,3rd rev. ed.Williams, L.1936. Woods of Northeastern Peru.Field Museum of Natural History, Botanical Series, Volume XV, Publication 377, Chicago.
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