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Photo: Leslie J. Mehrhoff, University of Connecticut,
Invasive Plant
Cabomba caroliniana* 

A feathery leaved perennial aquatic plant with stems growing indefinitely but easily breaking into sections. The leaves are widly nspaced along the stem and consist of many slender segments arranged in a fan-shape. It remains completely submerged, with only the flowers protruding above the surface. These are less than 1 cm across with six white petals. 



Seed is probably not produced in Australia but plants grow rapidly and spread by fragments carried by the water. Cabomba is frequently grown in home aquaria. In the eastern States it can choke waterways at some seasons, excluding other aquatic life and stopping movement of boats.

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Alternative Plants

Common Nardoo
Photo: Oz Water Gardens
Alternative Plant Common Nardoo
Marsilea drummondii
Aquatic Plants

This is a native, aquatic fern that prefers slow moving or still water. Fronds produce leaflets in the shape of four-leaf clovers and generally float on the water's surface. Attractive foliage and vigorous growth make Common Nardoo an excellent water feature.

Water Milfoil
Photo: Glenfield Nursery
Alternative Plant Water Milfoil
Myriophyllum papillosum
Aquatic Plants

A vigorous native perennial aquatic species with foxtail-like stems held above the water. Plants occur in shallow waters and provide shelter and spawning areas for fish. Thrives in full-sun to light-shade at a depth of 60 cm.

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