Noun | 1. | ![]() 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 St. Barbara's herb, winter cress, scurvy grass - any plant of the genus Barbarea: yellow-flowered Eurasian cresses; widely cultivated for winter salad Barbarea praecox, Barbarea verna, Belle Isle cress, early winter cress, land cress, American cress, American watercress - of southwestern Europe; cultivated in Florida Barbarea vulgaris, rockcress, rocket cress, Sisymbrium barbarea, yellow rocket - noxious cress with yellow flowers; sometimes placed in genus Sisymbrium |