Alcachofa de Tudela are flower buds of the Blanca de Tudela artichoke variety, grown mostly in the district of Ribera, in the Spanish Navarre region. Artichokes have been cultivated in this region since medieval times and they are Navarre’s best-known vegetable produce, alongside asparagus. Rigorously screened and graded before being packaged and shipped, Tudela artichokes are usually marketed fresh, stemless and in bunches of a -dozen, or canned. Their most distinctive feature is their resistance to blackening after harvesting.