20210427 09203700 1.0 TRUE Water hyacinth Native to Brazil, water hyacinth was introduced to Australia in the early 1900s as an aquatic ornamental plant. Water hyacinth is a major pest of creeks, rivers and dams. It chokes wetlands and waterways, killing native wildlife and interfering with recreational use. All other Eichhornia species are prohibited invasive plants and sightings of these must be reported to Biosecurity Queensland within 24 hours. © State of Queensland (Department of Agriculture and Fisheries), 2023 weeds pests Map layer extracted from Biosecurity Queensland pest distribution survey displaying distribution of individual invasive weed species.