Water chestnut

grass-like sedge grown for its edible corms

The Chinese water chestnut (or water chestnut) is a plant, Eleocharis dulcis.

Water chestnut
Scientific classification
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E. dulcis
Binomial name
Eleocharis dulcis

The corms of the plant are the water chestnuts. It has a crispy white flesh and can be eaten raw, slightly boiled, grilled, pickled, or tinned. This plant comes from China. They are grown in flooded paddy fields.