The first 2 are Water Primrose.

https://aquaplant.tamu.edu/plant-identification/alphabetical-index/water-primrose/

Maybe pulling out the last 3 plants for a picture may help determining them. Maybe one of the Smartweed versions or Water Willow.

I have primrose and smartweed in my big pond, and like having them. Both provide shade and cover for fry and fingerlings, but they can get leggy and need to be controlled.

AL