Orontium aquaticum.

Botanical name: 

Orontium aquaticum Linn. Araceae. Golden Club.

North America. The seeds of this species were gathered and dried by the Indians. Repeated boilings were necessary to fit them for use, the product resembling peas. The root is acrid but is rendered edible by roasting.

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