Sphinctanthus

Sphinctanthus is a genus of flowering plants in the family Rubiaceae, native to tropical South America. It is in a clade with Rosenbergiodendron and Tocoyena.

Species
Currently accepted species include:


 * Sphinctanthus acutilobus Huber
 * Sphinctanthus aurantiacus (Standl.) Fagerl.
 * Sphinctanthus fluvii-dulcis Delprete & C.H.Perss.
 * Sphinctanthus hasslerianus Chodat
 * Sphinctanthus insignis Steyerm.
 * Sphinctanthus maculatus Spruce ex K.Schum.
 * Sphinctanthus microphyllus K.Schum.
 * Sphinctanthus polycarpus (H.Karst.) Hook.f.
 * Sphinctanthus striiflorus (DC.) Hook.f. ex K.Schum.