Common Name(s): Peroba Rosa
Scientific Name: Aspidosperma polyneuron (syn. A. dugandii, A. peroba)
Distribution: Brazil and Argentina
Tree Size: 100-125 ft (30-38 m) tall, 4-5 ft (1.2-1.5 m) trunk diameter
Average Dried Weight: 47 lbs/ft3 (755 kg/m3)
Specific Gravity (Basic, 12% MC): .65, .75
Janka Hardness: 1,670 lbf (7,450 N)
Modulus of Rupture: 15,640 lbf/in2 (107.8 MPa)
Elastic Modulus: 2,002,000 lbf/in2 (13.81 GPa)
Crushing Strength: 9,140 lbf/in2 (63.0 MPa)
Shrinkage: Radial: 3.8%, Tangential: 6.4%, Volumetric: 11.6%, T/R Ratio: 1.7
Color/Appearance: Heartwood color ranges from yellow to pinkish red, sometimes with darker streaks of purple or brown. Gray to yellow sapwood not sharply demarcated from heartwood. Color tends to darken with age.
Grain/Texture: Grain is generally straight to slightly irregular or interlocked. Texture is fine and uniform.
Endgrain: Diffuse-porous; small pores in no specific arrangement; exclusively solitary; heartwood gum deposits occasionally present; growth rings indistinct; rays not visible without lens; parenchyma not visible.
Rot Resistance: Rated as durable regarding decay resistance, though susceptible to termite attack.
Workability: Overall easy to work, producing good results, though Peroba Rosa has an above average blunting effect on cutters. Glues, turns, and finishes well.
Odor: No characteristic odor.
Allergies/Toxicity: Although severe reactions are quite uncommon, Peroba Rosa has been reported as a sensitizer. Usually most common reactions simply include eye, skin, and respiratory irritation, as well as nausea and asthma-like symptoms. Generally, green wood causes the most pronounced reactions, while dry wood loses much of its toxicity. See the articles Wood Allergies and Toxicity and Wood Dust Safety for more information.
Pricing/Availability: Infrequently seen in the United States, Peroba Rosa is becoming increasingly scarce. Prices should be in the mid-to-upper range for an imported tropical hardwood.
Sustainability: This wood species is not listed in the CITES Appendices, but is on the IUCN Red List. It is listed as endangered due to a population reduction of over 50% in the past three generations, caused by a decline in its natural range, and exploitation.
Common Uses: Veneer, furniture, cabinetry, general construction (within natural range), carvings, and turned objects.
Comments: Reported to have good acoustic properties.
Scans/Pictures: A special thanks to Steve Earis for providing the wood sample (veneer) of this wood species.