Eperua rubiginosa is a tree that usually grows 5 - 20 metres tall, though occasionally specimens to 30 metres are recorded. The bole is usually 12 - 35cm in diameter, occasionally to 90cm[
The strong, durable timber is commonly harvested from the wild for local use and for trade.
S. America - northern Brazil, the Guyanas.
A frequent to common riverine tree, usually found above the level of annual flooding, growing on alluvial deposits[
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Although many species within the family Fabaceae have a symbiotic relationship with soil bacteria, this species is said to be devoid of such a relationship and therefore does not fix atmospheric nitrogen[
The heartwood is red brown to dark brown, with lighter veins; it is clearly demarcated from the 4 - 6cm wide band of sapwood. The texture is medium; the grain straight; the unseasoned wood has an unpleasant odour. The wood is heavy, hard; very durable, even in water, being very resistant to fungi, dry wood borers and termites. It seasons slowly, with a high risk of checking and distortion; once dry it is moderately stable in service. The wood has a fairly high blunting effect, so stellite-tipped and tungsten carbide tools are recommended; resin from fresh wood can clog sawteeth and cutters, though this is not a problem with dry wood; nailing and screwing are good, so long as the wood is pre-bored; gluing is correct. Being strong and durable even in water, the wood is used for purposes such as bridges, hydraulic works, heavy construction, industrial flooring, railway sleepers, telegraph poles, stakes, house construction, heavy carpentry, exterior joinery and panelling, cooperage etc[
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