Eryngium thorifolium

Eryngium thorifolium is an Eryngo with single tall stem (to 1.5 m), based with round, shield-like, saw-toothed greyish leaves and smaller ones up the stem, flowering with a few branches of yellowy-green flower heads. Under the heads are 6-8 spiny bract-leaves, within the heads the individual flower bracteoles are three-part.^{[citation needed]}

It naturally grows on rocky serpentine soil, and apart from Eryngium pseudothorifolium, lacks close allies.^[2]

It may be confused with Eryngium pseudothorifolium, whose leaves are more wedge-topped and less indented at the base, with only 1-3 flower heads, and which grows on marly soil,^[3] and also with species of Pimpinella, such as Pimpinella flabellifolia.^{[citation needed]}

It is native to the far southwest of Turkey.^[4][1]