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 Europe, Asia, and North America. The bulbs, which dig themselves into the solid earth below the mud, constitute an article of food with the Chinese, and, on that account, the plant is extensively cultivated. This species is enumerated by Thunberg as among the edible plants of Japan. In eastern America, the Indians boil or roast this root which they called katnisswapstoo and constitutes an important article of diet.
