Anonidium usambarense was a tall tree in the Annonaceae family, formerly endemic to Tanzania. A single specimen was collected in 1910 at Amani in the Usambara mountains, at an altitude of 900m. In spite of intensive field work in the region looking specifically for this species, no other examples were found and it was declared extinct in 1998. The causes for its disappearance were the timber industry and the desire to expand agricultural land.
It is currently declared as 'data deficient' due to confusion about the type specimen.
- Eastern Arc Mountains & Coastal Forests CEPF Plant Assessment Project Participants (2009). "Anonidium usambarense". The IUCN Red List of Threatened Species. IUCN. 2009: e.T32848A9735255. doi:10.2305/IUCN.UK.2009-2.RLTS.T32848A9735255.en. Retrieved 10 November 2017.
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