|Grassland and uncultivated soil
Dark pinky-purple flowers are borne July to September.
30 - 100 cms.
roots are edible, though rarely used, not least due to their propensity
to induce flatulence in some people. The taproot is considered the most
nutritious. The leaves are also edible, though the spines make their
preparation for food too tedious to be worth eating. The stalks,
however, are also edible and more easily de-spined.