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Kidney leaf mud plantain forms thick
Has the ability to out-compete native
|A leaf rises above the water surface.|
Kidney leaf mud plantain (Heteranthera reniformis) is an aquatic plant native to North, Central and South America. It grows well in disturbed shallow freshwater habitats. It was introduced into Australia as a pond pant, with escaped plants colonising freshwater streams, ponds and mudflats.
Kidney leaf mud plantain (KLMP) is a declared class 1 noxious weed in NSW.
It is a popular ornamental pond plant and is actively promoted and sold in the aquarium trade for its attractive foliage, which has lead to its escape and spread in the Australian environment. It is dangerous because of its quick growth, mat-forming habit, and its ability to out-compete native vegetation; it has the potential to be a serious weed.
It is a major weed in rice crops and a new weed to the Far North Coast.
The shallow growing depth suggests that KLMP may allow mechanical removal, however as the plant can reproduce vegetatively, this may lead to further spread through fragmentation. If mechanical or manual removal is to be undertaken, strict hygiene protocols will have to be implemented and followed. The added disturbance will encourage seed strike, hence follow-up treatment will be required.
Distribution map as at October 2016
Predictive mapping supplied by Queensland Biosecurity