This unmistakably gawky looking plant is called hedge mustard, seen here near the Bradlaugh Fields barn. Like all its relatives in the cabbage family, including garlic mustard and lady’s smock, it has four petals, cross-shape (as illustrated in this botanical drawing). In the case of hedge mustard the petals are yellow. In many places the leaves have been eaten as a vegetable, while the mustard-like seeds are used as a flavouring, as well as in herbalism. Many other creatures also enjoy feeding on hedge mustard, including the orange-tip butterfly.