Trapa natans, Water Chestnut

Trapa natans

Water Chestnut
Family: Trapaceae
Origin: Europe and Asia
USDA Zone: 6-11?
USDA Plant Hardiness MapSmall plant 2-5 ftFull sunBog or aquatic plantEdible plantInvasive plantSubtropical or temperate zone plant. Mature plant cold hardy at least to 30s F for a short time

Water chestnut features a rosette of floating leaves. Leaves are triangular in shape and strongly toothed. Small four-petaled flowers give way to the nut-like fruit. It forms dense floating mats, often three layers deep, that restrict light availability, reduce the oxygen content, and displace other emergent and floating vegetation. It is frequently cultivated in Asia and elsewhere where the fruit is eaten. Aquarium Plant.

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