Trapa

European water chestnut (Trapa natans)

Trapa natans - Useful Tropical Plants

Trapa natans - Bugwoodwiki

欧菱 Trapa natans

Trapa natans

Water Chestnut, Water Caltrop - Eat The Weeds and other things, too

Trapa natans L., Plants of the World Online

Trapa natans L., Plants of the World Online

Water Chestnut - Trapa natans

Trapa Natans Images – Browse 9,999 Stock Photos, Vectors, and Video

Invasion Biology Introduced Species Summary Project - Columbia University

Sagebud, Grow Your Garden, Plant a Tree, Pot a Flower