You searched for: “aquatic plants
aquatic plant (s) (noun), aquatic plants (pl)
1. Flora that grows partly or wholly in water whether rooted in the mud, as a lotus, or floating without anchorage; such as, the water hyacinth: Helen's aunt has a hobby of growing aquatic plants in a large aquarium.
2. Certain kinds of greenery that have adapted to living in or on water environments: The aquatic plants along the side of the river appeared to be water hyacinths.