Plants of South Eastern New South Wales

Ranunculus inundatus

Flowers and leaves. Photographer Don Wood, Pambula Lake near Pambula

Line drawings. b. petal; leaf; petal base and nectary; seed. EM Mayfield, National Herbarium of Victoria, © 2021 Royal Botanic Gardens Board

Common name

River buttercup

Family

Ranunculaceae

Where found

Damp sites, wet mud, or in water in ponds, streams, and swamps. Widespread.

Notes

Perennial herb to about 0.3 m high, rooting from the nodes or rhizomatous. Flowering stems hairless or more or less hairy at the base. Leaves basal and alternating up the stems, 1–5 cm long, 10-50 mm wide, deeply dissected into numerous linear lobes 0.4–2 mm wide, surfaces hairless or the lower surface with very few scattered hairs. Flowers yellow, with 5–12 petals each 4–10 mm long. Sepals spreading. Flowering stems usually 1–3-flowered. Flowering: mostly spring to summer. Seeds usually 20–45, 1.5-2 mm long, oval to more or less lens-shaped, the sides almost smooth or with obscure low warty ridges; beak slender, about 1 mm long, bent sharply down.

All native plants on unleased land in the ACT are protected.

PlantNET description:  http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Ranunculus~inundatus (accessed 4 February, 2021)