This church crowns the Fontebranda hill above the famous fountain of that name immortalized by Dante, and in a steep lane below stands the house of St Catherine, now converted into a church and oratory, and maintained at the expense of the inhabitants of the Contrada dell' Oca.
Here also are other plants with edible roots - the oca (Oxalis tuberosa), ulluca (Ullucus tuberosus), massua (Tropceolum tuberosum), and learc6 (Polymnia sonchifolia).
In the sierra region, wheat, barley, oats, quinua (Chenopodium quinoa), alfalfa, Indian corn, oca (Oxalis tuberosa) and potatoes are the principal products.
above the sea, the indigenous species include the potato, maize, oca (Oxalis tuberosa), and quinua (Chenopodium quinoa), and the exotic species, wheat, barley, oats, alfalfa (Medicago saliva), and most of the fruits and vegetables of the northern temperate zone.
Among the more important productions, the potato, oca (Oxalis tuberosa), quinoa (Chenopodium quinoa) and some coarse grasses characterize the puna region, while barley, an exotic, is widely grown for fodder.