In between Symphytum and Bolax which one is endemic to temperate South America?
Symphytum Symphytum is a genus of flowering plants in the family Boraginaceae. Its species are known by the common name comfrey. There are up to 35 known species. Some species and hybrids, particularly "S. officinale" and "S." × "uplandicum", are used in gardening and herbal medicine.
Benthamiella Benthamiella is a genus of plants in the Solanaceae family, native to Patagonia in southern South America. Its species have been described as "attractive, small, cushion plants".