Floating water chestnut
Have you seen Floating water chestnut?
Be on the lookout for Floating water chestnut and report it to Biosecurity Queensland. Early detection and reporting are the key elements in preventing Floating water chestnut from becoming a major problem in Queensland.
You must take reasonable action to minimise the risk of spreading Floating water chestnut to ensure the situation isn't worsened.
You must report all sightings to Biosecurity Queensland within 24 hours.
Call us on 13 25 23.
© John Randall Creative Commons
Native to South East Asia, floating water chestnut is an aquatic plant with triangular leaves, white flowers and a 4-horned nut. Although it has never been found in Queensland, floating water chestnut could become a serious problem in lakes, dams and reservoirs if introduced.
- Floating aquatic plant.
- Leaves are triangular, waxy.
- Flowers have 4 white petals, centred rosette.
- Fruit is 4-horned nut containing 1 seed.
- Seed pods are hard, sharp.
- Prefers lakes, dams, reservoirs and mudflats.
- Not known to occur in Queensland.
- If introduced, could become serious pest in Queensland's lakes, dams and reservoirs.
- Sharp seed pods cause painful injuries if stepped on.
How it is spread
- Spreads by seed.
- Before undertaking any preventative or control actions, contact our Customer Service Centre.
- Floating water chestnut is a prohibited invasive plant under the Biosecurity Act 2014.
- You must not keep, move, give away, sell or release into the environment. Penalties may apply.
- You must not take any action reasonably likely to exacerbate the biosecurity threat posed by floating water chestnut.
- You must take any action that is reasonably likely to minimise the biosecurity threat posed by floating water chestnut.
- You must report all sightings to Biosecurity Queensland within 24 hours.
- Contact the Customer Service Centre
- Last reviewed: 24 Sep 2021
- Last updated: 27 Sep 2021