Rojasia is a group of plants in the family Apocynaceae first described as a genus in 1905.Malme, Gustaf Oskar Andersson. 1905. Arkiv för Botanik utgivet av K. Svenska Vetenskapsakademien 4(14): 10–11, t. 2, f. 4. in LatinTropicos, genus Rojasia , Plants of the World Online accepted two species: Rojasia bornmuelleri (Schltr. ex Malme) Fontella, S.A.Cáceres & R.Santos Rojasia gracilis (Morong) Malme
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