Running Marsh Flower (Villarsia reniformis) with floating ring

Latin Name-  Villarsia reniformis
Position - Part shade (shade-tolerant) to full sun
Flowers - Yellow flowers on stems to 50cm
Submersible - to a depth of 40cm .
Foliage - Shiny bright green lily type leaves
Origin- Australia
Oxygenator-No
Edible - No