Growing on bank of small stream.
ID as Hydrocotyle acutiloba is tentative: it seems to be best fit, in terms of leaf shape, hairs on lamina and petiole, and habitat. Unfortunately no flowering material, only infertile plants.
In the absence of flowerings and fruits, my ID was influenced by leaf shape (strong similarities to photograph in PlantNet) and habitat as given in PlantNet and FloraVic (stream bank).