130728 MEDIUM-FLOWERED WINTER-CRESS Barbarea intermedia (Brassicaceae) Height to 80cm. Upright, hairless perennial of waste ground and arable field margins. FLOWERS are 5-6mm across with 4 yellow petals; borne in terminal heads (Mar-Aug). FRUITS are long, narrow and 4-sided pods. LEAVES are dark green and shiny; all the leaves are lobed. STATUS-Introduced, occasional but seemingly increasing.