Characteristics
Trapa natans L.
water chestnut
An invasive plant of ponds, lakes, bays, canals, and slow moving rivers with muddy bottoms. It is very common on the Hudson River and Mohawk River. This plant tends to grow in shallower water, rarely found in water deeper than 15 feet.
Forb/herb
Annual
Vascular
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Not Native Naturalized OBL (NWPL) OBL (NWPL EMP) OBL (NWPL NCNE) SNA (State Rank) GNR (Global Rank)
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Classification
Eudicots
Myrtales
Trapa natans L. - water chestnut
Citation
Trapa natans L.
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Species Distribution Map

This species has been reported in the counties highlighted in the interactive distribution map below. Click on a county to display its name.

Source
Synonyms
Plant Photos
Photo by: Andrew Nelson - Rice Creek Field Sta., SUNY Oswego Photo taken: Oswego County, NY: 02 Sep 2008 - 1
Trapa_natans_ANelson_080902_02.jpg
Photo by: Andrew Nelson - Rice Creek Field Sta., SUNY Oswego Photo taken: Oswego County, NY: 02 Sep 2008 - 1
Trapa_natans_ANelson_080902_06.jpg
Photo by: Andrew Nelson - Rice Creek Field Sta., SUNY Oswego Photo taken: Oswego County, NY: 02 Sep 2008 - 1
Trapa_natans_ANelson_080902_10.jpg
Photo by: Andrew Nelson - Rice Creek Field Sta., SUNY Oswego Photo taken: Oswego County, NY: 02 Sep 2008 - 1
Trapa_natans_ANelson_080902_11.jpg
Photo by: Andrew Nelson - Rice Creek Field Sta., SUNY Oswego Photo taken: Oswego County, NY: 02 Sep 2008 - 1
Trapa_natans_ANelson_080902_13.jpg
Photo by: Kyle J. Webster. Photo taken: Cayuga Co., NY: 07 August 2020 -
Trapa_natans_KWebster_08072020_01.jpg
Photo by: Kyle J. Webster. Photo taken: Cayuga Co., NY: 07 August 2020 -
Trapa_natans_KWebster_08072020_02.jpg
Photo by: Selma Rosenthal. Photo taken: Onondaga Co., NY: 16 Aug 2016 - 7
Trapa_natans_SRosenthal_01.jpg