Picris echioides Linn. Compositae. Ox-Tongue.
Europe and north Africa. Johnson says this plant has been used as a potherb when in the young state.
Picris hieracioides Linn.
Temperate Asia, Australia, New Zealand and Europe. The plant is used as a potherb.
Sturtevant's Edible Plants of the World, 1919, was edited by U. P. Hedrick.