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Adirondack Park Agency Adirondack Nature Conservancy Paul Smith's College NYS Department of Environmental Conservation Adirondack Park Agency Adirondack Nature Conservancy
 

Plant Identification

Water Chestnut
(Trapa natans)


Fact sheet
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Water chestnut is a floating leaved aquatic plant. Use the identification techniques and images to help distinguish water chestnut from other aquatic plants.
  • Leaves of water chestnut are green, triangular and between two and three inches wide. They have a glossy sheen and toothed edges.

  • The leaf-stalks of the floating leaves have air bladders and form a rosette on the water's surface.

  • In July, water chestnut produces white flowers and later generates thorny, spiked nutlets.

Water Chestnut
Photo provided by Darrin Freshwater Institute
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Mat of Water Chestnut
© John Randall / The Nature Conservancy
  

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Water Chestnut nutlet