Image 28 of 28
TREACLE-MUSTARD Erysimum cheiranthoides (Brassicaceae) Height to 90cm. Slender, upright annual with angled stems. Found on waste ground and arable field margins. FLOWERS are 6-10mm across, the 4 yellow petals longer than the sepals; borne in terminal clusters (Jun-Sep). FRUITS are 25mm long and slender. LEAVES are shallowly-lobed and narrow.