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Achenichen
Achenichen (Polyscias ornifolia)

Family: Araliaceae

Common names: Achenichen, Bugei, Manurauriki, Rai young, Rakapo humutarung poko, Tirakapo humutarung pok, Voantsilana

Distributed in: Madagascar (Africa)

Distribution overview: The species occurs in Madagascar.

Common uses: Balusters, Bedroom suites, Building construction, Building materials, Cabinetmaking, Carvings, Chairs, Chests, Concealed parts (Furniture), Construction, Core Stock, Decorative veneer, Desks, Dining-room furniture, Domestic flooring, Dowell pins, Dowells, Drawer sides, Excelsior, Figured veneer, Fine furniture, Floor lamps, Flooring, Furniture , Furniture components, Furniture squares or stock, Hardboards, Hatracks, Interior construction, Interior trim, Joinery, Kitchen cabinets, Light construction, Living-room suites, Model airplanes, Moldings, Office furniture, Parquet flooring, Radio - stereo - TV cabinets, Rustic furniture, Specialty items, Stairworks

Environment profile: Status has not been officially assessed

Tree size: Trunk diameter is 200-250 cm

Colors: the heart isWhite, Yellowand the sapwoodNot clearly defined from sapwood , White.The grain isStraight, the textureFine and uniform

Natural durability: Perishable, Susceptible to insect and marine borer attack

Odor: No specific smell or taste

Drying Defects: Moderate twist/warp, Uneven Moisture Content

Ease of Drying: Thick Stock Requires Care

Blunting Effect: Little

Boring: Poor to very poor results

Carving: Good results

Cutting Resistance: Satisfactory sawing characteristics

Gluing: Very Good to Excellent Results

Mortising: Responds well to mortising operations

Moulding: Excellent moulding properties

Movement in Service: Excellent moulding properties

Nailing: Fairly Easy to Very Easy, Satisfactory nailing properties

Planing: Poor to Very Poor

Resistance to Impregnation: Sapwood is permeable

Response to hand tools: Good response

Routing recessing: Fairly good response to preservative treatment

Sanding: Poor to Very Poor Results

Steam bending: Poor to Very Poor Results

Screwing: Fairly Easy to Very Easy, Satisfactory screwing properties; Turning: Good results

Painting: Fair to Good; Polishing: Fair;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity
Density kg/m3
Bending Strength 620 937 kg/cm2
Crushing Strength 310 533 kg/cm2
Hardness kg
Impact Strength cm
Shearing Strength 130 kg/cm2
Stiffness 1000 kg/cm2
Tangential Shrinkage %
Radial Shrinkage %
Weight kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 8820 13328 psi
Maximum Crushing Strength 4410 7595 psi
Shearing Strength 1862 psi
Stiffness 1519 1764 1000 psi

Compression strength (parallel to grain) = high
Bending strength (MOR) = high

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
*Come interpretare i dati (manleva su eventuali imprecisioni)