Robust tufted perennial herb with thick woody roots ending in cylindric tubers. Leaves and stems erect, leaves beding down to float with the current, more erect in still water.
Cultural knowledge: Value
Ecological role: Frog habitat
Height: 20-50cm
Width: 40mm
Sun: Full sun, semi shade
Soil type: Aquatic in slow flowing waterto 2m deep and permanent swamps and streams