Potamogeton bicupulatus Fernald
snailseed pondweed, hairlike pondweed
snailseed pondweed, hairlike pondweed
October 9,
Myles Standish State Forest, Plymouth
The short leafy-like appendage is a stipule, which is fused with the leaf at its bottom portion. The fused area is less than a half of its total length.