Synonyms: Asclepias convolvulacea; Asclepias daemia (heterotypic); Asclepias echinata (heterotypic); Asclepias glabra; Asclepias muricata; Asclepias scandens (heterotypic); Cynanchum bicolor; Cynanchum cordifolium (heterotypic); Cynanchum echinatum; Cynanchum extensum; Cynanchum pendulum; Daemia aethiopica; Daemia angolensis; Daemia bicolor; Daemia cordifolia (heterotypic); Daemia extensa; Daemia forskalii; Daemia glabra; Daemia guineensis; Daemia scandens (homotypic); Doemia aethiopica; Doemia angolensis; Doemia barbata; Doemia bicolor; Doemia glabra; Doemia guineensis; Gomphocarpus volubilis (homotypic); Pergularia apiculata; Pergularia bifida; Pergularia brevituba; Pergularia daemia (heterotypic); Pergularia daemia var. macrantha; Pergularia extensa; Pergularia glabra; Pergularia purpurea; Raphistemma ciliatum