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Pterocarpus is a pantropical genus of trees in the family Fabaceae. It belongs to the subfamily Faboideae, and was recently assigned to the informal monophyletic Pterocarpus clade within the Dalbergieae. Most species of Pterocarpus yield valuable timber traded as padauk (or padouk); other common names are mukwa or narra. P. santalinus also yields the most precious rosewood in China known as Zitan.

The wood from the narra tree and the Burmese padauk tree is marketed as amboyna when it has grown in the burl form. The scientific name is Latinized Ancient Greek and means "wing fruit", referring to the unusual shape of the seed pods in this genus.

Common Name(s): African Padauk, Vermillion
Scientific Name: Pterocarpus soyauxii
Distribution: Central and tropical west Africa
Tree Size:100-130 ft (30-40 m) tall, 2-4 ft (.6-1.2 m) trunk diameter
Average Dried Weight: 47 lbs/ft3 (745 kg/m3)
Specific Gravity (Basic, 12% MC): .61, .75
Janka Hardness: 1,970 lbf (8,760 N)
Modulus of Rupture: 16,830 lbf/in2 (116.0 MPa)
Elastic Modulus: 1,700,000 lbf/in2 (11.72 GPa)
Crushing Strength: 8,130 lbf/in2 (56.0 MPa)
Shrinkage: Radial: 3.3%, Tangential: 5.2%, Volumetric: 7.6%, T/R Ratio: 1.6

Color/Appearance: ------------------
Heartwood color can vary, ranging from a pale pinkish orange to a deep brownish red. Most pieces tend to start reddish orange when freshly cut, darkening substantially over time to a reddish/purplish brown (some lighter pieces age to a grayish brown). See the article Preventing Color Changes in Exotic Woods for more information.

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