In between Symphytum and Bolax which one is endemic to temperate South America?
Bolax Bolax is a genus of flowering plant in the Apiaceae, with 4 or 5 species. It is endemic to temperate South America.
Olmediella Olmediella is a monotypic genus of flowering plants in the willow family, Salicaceae. It consists of one species of trees: Olmediella betschleriana, which is native to Central America. Formerly placed in the heterogeneous family Flacourtiaceae, "Olmediella" is now classified in Salicaceae, along with close relatives "Bennettiodendron", "Carrierea", "Idesia", "Itoa", "Macrohasseltia", "Poliothyrsis", and even the willows ("Salix") and cottonwoods ("Populus") themselves.