Synonyms: Funastrum cynanchoides heterophyllum; Funastrum hartwegii; Funastrum heterophyllum; Funastrum lineare; Funastrum lineare var. heterophyllum (homotypic); Philibertella hartwegii; Philibertella hartwegii var. heterophylla (homotypic); Philibertella heterophylla (homotypic); Philibertia heterophylla (homotypic); Philibertia linearis; Philibertia linearis var. heterophylla (homotypic); Philibertia linearis var. hirtella; Sarcostemma cynanchoides hartwegii; Sarcostemma cynanchoides var. hartwegii; Sarcostemma heterophyllum (homotypic); Sarcostemma heterophyllum var. hirtellum; Sarcostemma lineare (heterotypic)