(Oxalis tuberosa) Another tasty tuber from the Andies . One of the lost crops of the Inca's, oca is the second most popular tuber in Peru after potatoes. The small, bright pink tubers are similar in flavor to a tangy potato.
The attractive clover- like foliage is also edible. The tubers mature late in the season and are usually harvest after the first light frost. In northern areas where frost comes before November, protection is needed to get good sized tubers.