Lagarosiphon major (Lagarosiphon)

It is important to accurately identify lagarosiphon. It can be confused with other aquatic weeds, including Elodea canadensis, Egeria densa and Hydrilla verticillata. Unlike lagarosiphon whose leaves occur in alternate spirals along the stem, these three weeds have leaves that are clustered around the stem in whorls. Lagarosiphon has a thread-like root system which branches from the stem, anchoring plants to the bottom. Rhizomes (horizontal stems) are found in the sediment and also anchor the plant.PROHIBITED MATTER: If you see this plant report it. Call the NSW DPI Biosecurity Helpline 1800 680 244