Hedrick, U.P. editor. 1919. Sturtevant's Notes on Edible Plants. Report of the New York Agricultural Experiment Station for the Year 1919 II. Albany, J.B Lyon Company, State Printers. [References Available]
is a plant of the north temperate regions. This species has less of the acrid quality which is found in most species of the genus and is said to be eaten in Europe as a potherb.
