Synonyms: Canscora decurrens; Canscora diffusa var. tenella; Canscora diffusa var. tetraptera; Canscora divaricata (homotypic); Canscora foliosa; Canscora khandalensis; Canscora kirkii; Canscora lancifolia (homotypic); Canscora lauri; Canscora lawii; Canscora pauciflora; Canscora rubiflora; Canscora tenella; Cobamba dichotoma; Exacum diffusum (homotypic); Exacum erectum; Exacum tenellum; Flemingia virgata (homotypic); Gentiana diffusa (heterotypic); Orthostemon erectus; Orthostemon huegelii; Orthostemon kirkii; Pladera virgata; Striga esquirolii