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Iroko is one of the trees grown in Nigeria.[1]
![A West African Iroko Tree](http://upload.wikimedia.org/wikipedia/commons/thumb/a/a0/Iroko_%C3%A0_Koussou_Boukomb%C3%A9_3.jpg/220px-Iroko_%C3%A0_Koussou_Boukomb%C3%A9_3.jpg)
- ^ Aguwa, J. I.; Sadiku, S. (2012). "Reliability Studies on Timber Data from Nigerian Grown Iroko Tree (Chlorophora excelsa) as Bridge Beam Material". International Journal of Engineering Research in Africa. 8: 17–35. doi:10.4028/www.scientific.net/JERA.8.17. ISSN 1663-4144.