This week's weed is a water weed commonly known as Cabomba. It's classified as a RESTRICTED invasive.
WHAT TO LOOK FOR
- Perennial fully submerged aquatic plant rooted at depths of up to 3m (can grow floating)
- Leaves are brown-green feathery & fan-shaped, oppositely arranged along stems up to 10m in length
- Flowers are white about 2cm across, appearing above the surface on a short stem
- Soft and slimy to the touch
- Prefers ponds, dams and slow moving waterways
WHY IT'S BAD
- Aggressive grower forming dense canopies just below the surface, displacing native water plants
- Affects water quality, siltation levels and water flow
- Impedes access to water by stock, wildlife and human recreation (entanglement)
- Easily spreads and reproduces by stem fragments in flood waters, on recreation craft and animals
- Potentially spreads in illegal aquarium plant trade
WHAT TO DO
- Report to GRC for advice on immediate control
- DO NOT give it away, sell it, or release it into the environment. Penalties may apply.