Anchored water hyacinth

Eichhornia azurea

Schedule 2 Restricted Matter

Biosecurity Queensland must be contacted within 24 hours of sighting, call: 13 25 23.

family

Pontederiaceae

origin

Exotic

declaration

Category 1 Restricted Matter (Biosecurity Act 2014)

Category 1 Restricted Matter (Biosecurity Act 2014)

Category 1 – must be reported to a Queensland Government inspector within 24 hours

Common names

Rooted water-hyacinth, Saw-petal water hyacinth.

Eichhornia azurea is a perennial aquatic plant with submersed and emersed leaves, up to 100 cm tall. In the neotropics, with other aquatic plants, it forms floating masses that obstruct navigation. Propagation is by whole plants, stem fragments, fruits, and seeds. E. azurea was introduced into the U.S. as an aquatic ornamental but has not become established as a weed here. Anchored water hyacinth smothers the surface of creeks, lakes and other water bodies. It has not yet been found in Australia., Anchored water hyacinth is a prohibited invasive plant under the Biosecurity Act 2014.

Leaf arrangement:Simple
Leaf form:Alternate
Purple
Green

Impact

Impact

Eichhornia azurea grows rapidly and can very quickly form expansive mats of floating plants, completely covering even large lakes. This complete coverage of the surface of the water blocks sunlight and depletes the oxygen available to the rest of the aquatic community. It can make the body of water uninhabitable by other aquatic organisms. Can aso impact upon infrastructure such as irrigation pumps, pontoons and bridges. For more information from NSW DPI

Location

Location

Characteristics

Characteristics

Similar Species

Similar Species

Control Methods