Hasseltiopsis is a monotypic genus of flowering plants in the family Salicaceae. It includes a single species, Hasseltiopsis dioica, a tree native to southern Mexico and Costa Rica. Formerly placed in the heterogeneous family Flacourtiaceae,Sleumer, H.O. 1980. Flacourtiaceae. Flora Neotropica 22: 1-499. Hasseltiopsis is now classified in Salicaceae, along with close relatives Prockia, Pineda, Neosprucea, and Banara.Alford, M.H. 2008. Revision of Neosprucea (Salicaceae). Systematic Botany Monographs 85: 1-62.
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