water plant

a plant that grows in water.

Origin of water plant

First recorded in 1760–70

We could not induce the Bedouin to gather a water-plant we coveted in one of them for this reason.

Southern Arabia |Theodore Bent
This marsh is surrounded with very lofty oaks, and abounds with pondweed, the water-plant named by botanists potamogeton.

Insect Architecture |James Rennie
I, for one, am never weary of the time-honoured demonstration of a water-plant giving off oxygen as it assimilates.

Rustic Sounds |Francis Darwin
A kind of water-plant grows in these lakes very fast and mats together, making marshy beds.

Little Folks of North America |Mary Hazelton Wade

In the absence of sponges, however, this fish attaches its eggs to the floating roots of the water-plant Pistia stratiotes.

Freshwater Sponges, Hydroids & Polyzoa |Nelson Annandale