Ononis

About

Ononis is a genus of 80–90 species of perennial herbs and subshrubs in the legume family Fabaceae. The members of this genus are called restharrows; an old spelling "wrestharrows" is also recorded from 1965. as some species grow as weeds on arable lands where their tough roots would catch and stop the harrow. The genus is native to Europe, northern and eastern Africa, and western and central Asia.

Summary from Wikipedia