Diplotaxis muralis, commonly known as wall rocket, is a species of flowering plant in the mustard family. Some synonymous names for Diplotaxis muralis include Sisymbrium muralis, Eruca muralis, Erysimum muralis, Cheirinia muralis, and Hesperis muralis. These names are used interchangeably to refer to the same plant species. Wall rocket is typically found in rocky or sandy habitats and has a peppery taste with a slight mustard flavor. It is often used in salads, in pesto, or as a seasoning for fish and meat dishes. With its various synonyms, Diplotaxis muralis has been a significant botanical specimen for centuries.