peruvian native potatoes called `oca`on a market, arequipa, peru

america andean andes arequipa brown called colorful creole criolla crop cultivation culture cuzco delicious dinner eat eating food healthy homegrown ingredient lisa market nativas native nutritious oca olluco organic papa papas peru peruvian phureja potato potatoes produce raw root sack sierra solanum south tradition traditional tuber tuberosus ullucus