Arctopus is a genus of flowering plant in the Apiaceae, with 3 species. It is endemic to southern Africa. The genus name means 'bears foot' but it was used in Khoi-San medicine and adopted by the early settlers who used the Afrikaans name of sieketroos. They are atypical members of the Apiaceae with the leaves growing flat on the ground and are dioecious, having separate male and female plants.