Also called bat nut, buffalo nut, devil pod, lin kok, ling kio nut, ling nut and singhara.

An annual aquatic plant.  Native to Eurasia and Africa.  Invasive > learn+quiz Invasive > Global Invasive > in USA+Canada Invasive > report it! Invasive > in USA Invasive > in Michigan

Learn more about water-chestnut Trapa natans

Biological Control in Eastern USA (.pdf page 41)
Discover Life Encyclopedia of Life Google Google images USDA PLANTS db USGS Wikipedia