Stratiotes aloides L.
- Photo credit: © Richard Lansdown
- Stratiotes aloides L. – Water soldier
- It is a freshwater floating plant with rosettes of sword-shaped serrated leaves. Female plants occur in Great Britain, and produce a single 3-petalled white-slightly pink flower. It becomes covered in calcium carbonate in autumn and sinks, before re-emerging in spring with new growth. It can reproduce vegetatively, meaning it can spread to new habitats.
- Origin and Worldwide Distribution:
- It is native to temperate Asia and Europe.
- It is deemed invasive in Northern Ireland, the United States and Canada.
- Potential or Known Impacts:
- It may alter water chemistry, which may harm aquatic fauna and flora. It is also known to spread vegetatively and may form large monoculture stands/mats.
- Its serrated leaves may injure recreational water users, and others who handle the plant.
- How did it/could it get here?
- It may have been introduced as garden plant, and could have been introduced to the wild by garden escapes or by intentional releases.
- Is it found in Ireland or Northern Ireland?
- It is found in Northern Ireland in Fermanagh. It has also been recorded in Ireland.
- Methods for Prevention
- Ensure that it is not spread from already invaded areas.
- Ensure that equipment is checked, cleaned and dried before putting into another body of water. See Check Clean Dry for further information.
- Do not transplant from one area to another, including a privately owned pond.
- Record it here on CEDaR.