Assertion: european water chestnut | /r/HasProperty | trapa natans
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Source sentences:
text: European water chestnut (Trapa natans) is an annual plant that can form dense mats, limit boat traffic and recreational use, crowd out native plants, and create an oxygen depleted zone uninhabitable to fish and other organisms.
text: The European water chestnut (Trapa natans) is an invasive, partially submerged aquatic plant that was introduced to the U.S. in the 1920s from Eastern Europe.
text: European Water Chestnut, Trapa natans (also known as Water Caltrop) is a floating, rooted annual aquatic plant which is native to Europe, Asia and Africa.