Definition

Noun: * A tropical floating aquatic plant: A free-floating freshwater plant native to tropical and subtropical South America. It is characterized by thick, glossy, rounded leaves that form a rosette, and it produces a showy spike of lavender to pink flowers with a distinctive yellow spot. * An invasive species: Known for its extremely rapid growth rate, it forms dense mats on the surface of waterways. These mats block sunlight, deplete oxygen, and impede navigation, making it a serious ecological and economic problem in many parts of the world.

Examples

• Noun:
  • The canal was completely choked with water hyacinth.
  • Scientists are studying biological controls for the water hyacinth.
  • Despite its beautiful flower, the water hyacinth is a notorious invasive species.

Advanced Usage

• As a subject of environmental management: The term is frequently used in contexts discussing invasive species control, wetland ecology, and water resource management.
  • The cost of managing water hyacinth infestations runs into millions of dollars annually.
• In bioremediation: Research explores using water hyacinth to absorb pollutants from contaminated water, turning a problem into a potential solution.
  • The project uses water hyacinth for the phytoremediation of heavy metals.

Variants and Related Words

• Scientific name: .
• Common names: Nile lily, floating water hyacinth.
• Related ecological terms: Invasive aquatic weed, macrophyte, floating mat.

Synonyms

• Invasive aquatic plant
• Floating weed (Note: This is a more general descriptive term, not a true botanical synonym.)

Idioms and Fixed Phrases

• Choked with water hyacinth: A common descriptive phrase for waterways severely affected by this plant.
  • The once-navigable river is now choked with water hyacinth.
• Water hyacinth infestation: The standard term for a severe overgrowth of this plant in an ecosystem.
  • The lake is suffering from a severe water hyacinth infestation.

Noun

1. a tropical floating aquatic plant having spikes of large blue flowers; troublesome in clogging waterways especially in southern United States