Ononis arvensis.

Botanical name: 

Ononis arvensis Linn. Leguminosae. Rest-Harrow.

Europe. Rest-harrow, according to Gerarde, furnishes a food. "The tender sprigs or crops of this shrub before the thornes come forth, are preserved in pickle, and be very pleasant sauce to be eaten with meat as sallad, as Dioscorides teacheth."

Sturtevant's Edible Plants of the World, 1919, was edited by U. P. Hedrick.