Green salad leaves that cannot be classified as a true herb or vegetable, which are native to the Mediterranean and eastern Asia. It has a strong peppery, nutty flavor and its dark green leaves have a texture similar to spinach. Also commonly referred to as "Arugula", the seeds of this plant are used for flavoring oils, while the greens are good complements to salads, soups, sandwiches, and a variety of pasta and vegetable dishes. For substitute greens, use chicory, Belgian endive, escarole, radicchio, watercress, young spinach greens or young mustard greens. Rocket is also known as arrugula, Italian cress, rugola rugula, rocket, roquette, and rucola.