Erect, hardy, perennial marginal plant <60cm high. Dark green alternate leaves heart or arrow-shaped. White flowers (Nov-Jan) arch above foliage in bottlebrush-like spikes <20cm long, drooping tip resembling lizard’s tail; form nutlets.
Wetlands, swamps, drains, streams, lake edges.
Underground runners & stem fragments.
Displaces native species.
In narrow waterways, reduce light with riparian planting. Follow up to control regrowth.
1. Very little known about control. Spray (100ml glyphosate/10L, use glyphosate formulation approved for use over water).
Caution: when using any herbicide or pesticide PLEASE READ THE LABEL THOROUGHLY to ensure that all instructions and safety requirements are followed.