Pondweed
Full definition of pondweed
Noun
pondweed
(plural pondweeds)- Any plant of the genus , that grows in ponds or similar aquatic conditions; extended to other similar plants.
- unknown date — greenfingers.com articleIf you have to clear out any pondweed, make sure you leave it by the water’s edge before composting it so that any wildlife can crawl back into the pond.