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Warning

This information was published in 1966 in An Encyclopaedia of New Zealand, edited by A. H. McLintock. It has not been corrected and will not be updated.

Up-to-date information can be found elsewhere in Te Ara.

Azolla rubra, a fern covering large areas of water. In centre, a plant of approximately natural size; at right, a side view (×5); and at left, further enlarged portion showing overlapping leaves