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Story: Water quality

Egeria

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Egeria

Egeria densa or Brazilian water weed is a native of South America. It is widespread throughout the North Island streams, rivers and lakes, and is also found in some South Island lakes. Its leaves are about 3 centimetres in length.

Using this item

NIWA – National Institute of Water and Atmospheric Research

by Rohan Wells

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How to cite this page

Mike Scarsbrook and Kit Rutherford, Water quality – Problem plants and microbes, Te Ara – the Encyclopedia of New Zealand, https://teara.govt.nz/en/photograph/15529/egeria (accessed 4 June 2026).

Story by Mike Scarsbrook and Kit Rutherford, published 1 March 2009, updated 18 July 2016.