| Noun | 1. | Diplotaxis - wall rocket dilleniid dicot genus - genus of more or less advanced dicotyledonous trees and shrubs and herbs Brassicaceae, Cruciferae, family Brassicaceae, family Cruciferae, mustard family - a large family of plants with four-petaled flowers; includes mustards, cabbages, broccoli, turnips, cresses, and their many relatives Diplotaxis muralis, Diplotaxis tenuifolia, wall rocket - yellow-flowered European plant that grows on old walls and in waste places; an adventive weed in North America Diplotaxis erucoides, white rocket - from Mediterranean region; a naturalized weed throughout southern Europe |