Collins, 94; Readers Digest, 59
This long-stalked biennial with pretty white flowers can be seen from April to August. It smells strongly of garlic when crushed. It has long pods which can commonly be seen in hedges or open woods. It is a member of the cabbage family. One of its many folk-names is ‘Jack-by-the-hedge’ reflecting its habitat.
In June the green caterpillar of the Orange Tip butterfly can be found feeding on the pods from which it is difficult to distinguish.