Needle Leaf Ludwigia (Ludwigia acruata) with floating ring

Perennial
Position Full sun - part shade
Flowers - Small yellow flowers
Submersible - To a depth of 2cm - 20cm
Foliage - Produced above and below the water
Origin - South Eastern USA
Grows - to 5cm (width) and up to 20cm (high)
Cover - Excellent cover for fish in floating ring
Oxygenator - yes
Edible - No
Good for controlling algae and proving cover for baby fish and tadpoles