Is it difficult finding water hyacinth and how do you know whether you have found it or not?

Question: Is it difficult finding water hyacinth and how do you know whether you have found it or not?
- Keywords:
  hyacinth,
  plant,
  water
Asked by anon-239822 to Isabel, Douglas on 17 Mar 2020.
- Douglas Bray answered on 17 Mar 2020:
  
  Water Hyacinth is a huge pest and is found all over the tropical zone. It is a very distinctive plant so is very obvious when compared to other plants that are sometimes found along side it.

Question: Is it difficult finding water hyacinth and how do you know whether you have found it or not?