Just the other week the Wegmans supermarket in Somerville, New Jersey again had oca, priced at $5.99 / pound. It is an oxalis. This year the variety they have for sale is a bright red. Here's a link http://en.wikipedia.org/wiki/Oca/ to the Wikipedia entry. I enjoyed eating them last year, so bout some more this year. Judy in sunny New Jersey where we've gone from too hot to seasonably cool, but sadly lacking in rain