Marsh Pennywort - Hydrocotyle vulgaris
Leaves are peltate, having a roughly circular shape and frequently a comparatively long petiole. The flower stems are shorter than the petioles and bare tiny, pinkish flowers.
The leaves are similar to Navelwort but this found in much dryer habitats such as walls and quarries.

Aquatic weed that spreads out horizontally forming dense mats in shallow water, mud, or in marshes.
Flowers June to August.
Perennial.
Widespread and fairly frequent in Britain.
Local in Leicestershire and Rutland. In the 1979 Flora survey of Leicestershire it was found in 14 of the 617 tetrads.
It is on the local VC55 Rare Plant Register
Leicestershire & Rutland Map
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MAP KEY:
Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015