Xysmalobium undulatum (L.) Aiton f.
      
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1 1079229 Xysmalobium undulatum (L.) Aiton f. [181 96858 Asclepias undulata L.] Asclepiadaceae
I.B. Pole Evans, Fl. Pl. Afr., vol. 6 : t. 215 (1926) [K.A. Lansdell]