Dieffenbachia seguine.

Botanical name: 

Dieffenbachia seguine Schott. Aroideae. Dumb Cane.

Tropical America. A wholesome starch is prepared from the stem, although the juice of the plant is so excessively acrid as to cause the mouth of any one biting it to swell and thus to prevent articulation for several days.

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