Commelina angustifolia ? Commelinaceae.

The rhizomes contain a good deal of starch mixed with mucilage and are therefore fit for food when cooked.

Commelina coelestis Willd. Blue Spiderwort.

Mexico. The rhizomes are used as food in India.

Commelina communis Linn.

China. In China, this plant is much cultivated as a potherb, which is eaten in spring.

Commelina latifolia Hochst.

Abyssinia. It is used as a potherb.

Commelina striata ?

The rhizomes are suitable for food.

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