The river buttercup from Australia, Ranunculus inundatus, is also sold with the label “Ranunculus papulentus”. It is a true eye-catcher with its unique palmate fresh green leaves and its creeping growth habit. To live up to its full potential, this Ranunculus needs lots of light to prevent it from forming too long leaf stalks. Ranunculus inundatus can also be cultivated as bog plant in shallow water or wet soil. Under good conditions it will form its small yellow flowers then.
Ranunculus inundatus, or river buttercup, is an amphibic plant originating from south-eastern Australia. There it grows on wet mud or in the waters of ponds and rivers. Ranunculus (buttercup) species are found in many wetlands all over the world, however, R. inundatus is one of the few that grow submersed, too.
Much like Hydrocotyle and Marsilea species, R. inundatus forms sprouts, either in the substrate or creeping along the substrate surface, on whose nodes the upright leaf stalks and the roots are located. The palmate leaf blades with their forked pinna are characteristic.
To grow to its full potential, R. inundatus needs lots of light. Under low light, it forms long leaf stalks, which gives it a much less attractive overall look. Like most plants requiring strong light, the river buttercup needs around 30 mg/l of CO2 and ample fertilisation. If you keep these things in mind, R. inundatus will develop into a beautiful and attractive plant.
Even though R. inundatus needs quite some time to adapt to new surroundings it picks up growth once it has done so. Then it produces a great number of low-growing lateral shoots that can cover the entire foreground very quickly. It is not a very decorative plant if allowed to grow in crowded conditions. However, R. inundatus looks beautiful when combined with other foreground plants or bordering on sandy, unplanted areas.
- Interesting leaf form
- Creeping rhizome
- Very nice in loose groups
Common names : River Buttercup
Family : Ranunculaceae
Genus : Ranunculus
Difficulty : Medium
Usage : Midground, Foreground, group
Growth : Fast
pH value : 5 – 7
Temp. tolerance : 10 – 30°C
Carbonate hardness : 0 – 14°dKH
General hardness : 0 – 30°dGH
Propagation : Runners, Splitting, cutting off daughter plants
Can grow emersed? : Yes
Source : Flowgrow
Portion : Selling in stem Submerged Form ( ~ 4cm Length )
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