Field eryngo

''Eryngium campestre'', known as field eryngo, is a species of ''Eryngium'', which is used medicinally. A member of the Apiaceae family, Eryngo is a hairless, thorny perennial. The leaves are tough and stiff, whitish-green. The basal leaves are long-stalked, pinnate and spiny.
The leaves of this plant are mined by the gall fly which is called ''Euleia heraclei''.