Leptolaena is a genus of flowering plants in the family Sarcolaenaceae. There are 9 species, all native to Madagascar.Schatz, G. E., Lowry, P. P., & Wolf, A. E. (2001). Endemic families of Madagascar: 7. A synoptic revision of Leptolaena Thouars sensu stricto (Sarcolaenaceae). Adansonia, 23(2), 171-189.

Species Nine species are accepted.

Leptolaena abrahamii Leptolaena arenaria Leptolaena cuspidata Leptolaena delphinensis Leptolaena gautieri Leptolaena masoalensis Leptolaena multiflora Leptolaena pauciflora Leptolaena raymondii

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