Diplotaxis (wall-rocket) is a genus of 39 species of flowering plants in the family Brassicaceae (Cruciferae), native to Europe, the Mediterranean region, Macaronesia, Western Asia, the Himalayas, and northeastern tropical Africa; the species diversity is highest in the Iberian Peninsula, North Africa and the Cape Verde archipelago. They are annual or perennial plants, either herbaceous or sub-shrubby with a woody base. The flowers are yellow in most species, but are white in Diplotaxis erucoides and violet in Diplotaxis acris. Some species, such as Diplotaxis tenuifolia and Diplotaxis muralis, have been historically used as leaf vegetables, are similar to Eruca sativa in their peppery flavour, and are used interchangeably with it.
Species 39 species are accepted.
Diplotaxis acris (Forssk.) Boiss. Diplotaxis antoniensis Rustan Diplotaxis assurgens (Delile) Thell. Diplotaxis australis Diplotaxis berthautii Braun-Blanq. & Maire Diplotaxis brachycarpa Godron Diplotaxis brevisiliqua (Coss.) Mart.-Laborde Diplotaxis brochmannii Diplotaxis catholica (L.) DC. Diplotaxis cossoniana Diplotaxis cretacea Kolov Diplotaxis cyrenaica Diplotaxis duveyrieriana Diplotaxis erucoides (L.) DC. – white wall-rocket Diplotaxis glauca (J.A.Schmidt) O.E.Schulz Diplotaxis gorgadensis Rustan Diplotaxis gracilis (Webb) O.E.Schulz Diplotaxis griffithii (Hook.f. & Thomson) Boiss. Diplotaxis harra (Forssk.) Boiss. Diplotaxis hirta (A.Chev.) Rustan & L.Borgen Diplotaxis ibicensis (Pau) Gómez-Campo Diplotaxis ilorcitana (Sennen) Aedo, Mart.-Laborde & Muñoz Garm. Diplotaxis kohlaanensis A. G. Miller & J. Nyberg Diplotaxis muralis (L.) DC. – annual wall-rocket Diplotaxis nepalensis Hara Diplotaxis ollivieri Maire Diplotaxis pitardiana Maire Diplotaxis saharensis Diplotaxis × schweinfurthii Diplotaxis siettiana Maire Diplotaxis siifolia Kunze Diplotaxis simplex (Viv.) Spreng. Diplotaxis sundingii Rustan Diplotaxis tenuifolia (L.) DC. – perennial wall-rocket Diplotaxis tenuisiliqua Delile Diplotaxis varia Rustan Diplotaxis villosa Boulos & Jallad Diplotaxis viminea (L.) DC. Diplotaxis virgata (Cav.) DC. Diplotaxis vogelii (Webb) Cout. Diplotaxis × wirtgenii
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