Description. The root is long, and hung with many fibres. The stalk is upright, six feet high, very prickly, and divided into many branches. The leaves are long and large; their colour is a pale green, and they are deeply divided at the edges into pointed segments: and at the end are formed in the same manner, resembling the point of a spear. The flowers grow at the tops of the branches, and are large and purple.
Place. It is common in waste grounds.
Time. It flowers in July.