Last Updated
：2025/11/23
water-lettuce
（ plural ）
Quizzes for review
Tropical duckweed, water lettuce (Pistia stratiotes).
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water-lettuce
The pond was covered in a thick mat of water-lettuce, making it difficult for fish to surface.
See correct answer
The pond was covered in a thick mat of water-lettuce, making it difficult for fish to surface.
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