DistributionRead full entry
Range DescriptionD. decaryi is endemic to the southern parts of Madagascar. It is found in a narrow band along the coast from north of Toliara to Tolagnaro (Fort Dauphin). Based on the distribution of herbarium specimens, the extent of occurrence (EOO) is 51,902 km² and the area of occupancy (AOO) is 28,048 km². Occurs from sea level up to 260 m.