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Trapa natans L.  

No occurrences found
Family: Lythraceae
water chestnut
[Trapa bispinosa Roxb., moreTrapa natans var. bispinosa (Roxb.) Makino]
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  • Gleason & Cronquist
  • Resources
Vascular plants of NE US and adjacent Canada
Stem mainly submersed, to 1 m or more; blades of aerial lvs 2-5 cm wide, sharply serrate above; fls axillary, short-peduncled; pet white, 8 mm; fr 3-4 cm wide, with 4 stout horns; 2n=ca 36, ca 48. Native of Eurasia, established and becoming abundant in the Hudson, Potomac, and Mohawk rivers, and locally elsewhere in our range. June-Sept.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.
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