Hedge-mustard

Hedge-mustard (Sisymbrium), a genus of plants of the natural order Crucifere, annual or rarely perennial herbs, with very various foliage, small yellow or white flowers, and a long roundish or six-angled pod (silique). Several species are natives of Britain, of which one, the Common Hedge-mustard (S. officinale), was once employed in medicine for catarrhs and other ailments. It is an annual plant, plentiful in waste places and by waysides, sometimes two feet high, branched, with runcinate or deeply-lobed leaves, stem and leaves hairy.