Rather like a small version of the narrow-leaved water-plantain (Alisma lanceolatum) and found in the same sort of aquatic habitat: the shallow margins of lakes and ponds. The records are mostly concentrated into three regions
All names: Baldellia ranunculoides (L.) Parl.; Alisma ranunculoides L.; Echinodorus ranunculoides (L.) Engelm.
NBN Atlas mapping: Species account : NBN Atlas UK Species Observations database
iNaturalist: Species account : iNaturalist World Species Observations database