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Ranunculus inundatus, River Buttercup, is an aquatic or semi-aquatic perennial. The Buttercups are members of the Ranunculaceae family.
The leaves are mid green, divided into numerous lobes, and held on a 15 centimetre petiole.
Flowers are shiny yellow, 1.5 centimetres across with 5-7 petals and held above the foliage by 30 centimetre stalks. Flowering extends from spring to summer. For maximum flowering plants need to be grown in full sun. Both foliage and flowers are attractive features.
Ranunculus inundatus is a vigorous plant that will spread rapidly via rhizomes.
The River Buttercup is widespread in eastern NSW and is also found in the other mainland states as well as South Australia.
The River Buttercup may be grown on the margins of pools and dams as well as bog gardens and sites that retain moisture.
Propagate by division.