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Floating Pennywort, Hydrocotyle ranunculoides


Short description of Hydrocotyle ranunculoides, Floating Pennywort

Somewhat fleshy stems with roundish-reniform, bluntly toothed leaves held horizontal but above the substrate, creeping through other vegetation, over soil or over the surface of the water. Flowers without petals, greenish, held erect but on peduncles shorter than the petioles.

Description of Hydrocotyle ranunculoides, Floating Pennywort status in GB

Floating pennywort is widespread and well established in aquatic habitats the south and east of England and appears to be spreading rapidly north and westwards.

Habitat summary: Hydrocotyle ranunculoides, Floating Pennywort

In its native habitat, it occurs in shallow pools, the drawdown zones of lakes and in shaded seasonally inundated wetlands. In GB, it has been recorded from still or slow-flowing water in lakes, ponds, streams, ditches and canals.

Overview table

Environment: Freshwater
Species status: Non-Native
Native range: Northern America, Southern America
Functional type: Land plant
Status in England: Non-Native
Status in Scotland: Non-Native
Status in Wales: Non-Native
Location of first record: v.c.18
Date of first record: 1990

Distribution map

GB Distribution from BSBI

Author's name:

R.V. Lansdown (edited by Kevin Walker, June 2017)

Last updated:

October 2nd 2019

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