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Lagarosiphon (Lagarosiphon major) is listed as noxious in Class 1 throughout NSW. Local Control Authorities must be notified of the presence of this weed, and it must be eradicated and the site kept free of the weed. It cannot be sold or propagated or knowingly distributed. It has been recorded in Tasmania but not yet in NSW. Potentially a serious weed of deep water storages and MUST NOT be grown.
DescriptionA submerged, rhizomatous, perennial, aquatic plant native to South Africa. Stems branched, up to 5 metres long, leaves alternate, linear, curving back down the stems. The photo above was provided by Rohan Wells (New Zealand).
Extremely difficult, usually mechanical.
View a fact sheet for this weed here.
Must be reported to the Local Control Authority. Seek their advice.