Oxypetalum lutescens E.Fourn.
      
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2 734645 Oxypetalum lutescens E.Fourn. Asclepiadaceae
F.C. Hoehne, Monogr. Asclep. Bras., vol. 1 (Oxypetalum): t. 9, fig. 1 (1916) [F.C. Hoehne]