water hyacinth

Other forms: water hyacinths

Definitions of water hyacinth
  1. noun
    a tropical floating aquatic plant having spikes of large blue flowers; troublesome in clogging waterways especially in southern United States
    synonyms: Eichhornia crassipes, Eichhornia spesiosa, water orchid
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    type of:
    aquatic plant, hydrophyte, hydrophytic plant, water plant
    a plant that grows partly or wholly in water whether rooted in the mud, as a lotus, or floating without anchorage, as the water hyacinth
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