English edit

 
water hyacinth

Noun edit

water hyacinth (plural water hyacinths)

  1. Any of the genus Pontederia (syn. Eichhornia) of aquatic flowering plants.
    1. especially common water hyacinth (Pontederia crassipes, syn. Eichhornia crassipes), a problematic invasive plant that clogs waterways in warm temperate and subtropical regions worldwide.

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