Pennywort or dollarweed – edible wild plant of Florida
Pennywort grows naturally at the edges of ponds, lakes, canals, and riverbanks. It tends to grow in mats, and sometimes, when the water rises, it floats.
Its green leaves are easily recognizable. They are round and flat and shiny, and the stems attach to the center underside of the leaves. Pennywort is edible raw or cooked. Add it to other salad greens, or cook it with other herbs as a vegetable.
Source: Florida’s Edible Wild Plants by Peggy Sias Lantz
Get the the book Edible Wild Plants of Florida here: https://www.amazon.com/Floridas-Edible-Wild-Plants-Collecting/dp/0942084381/ref=sr_1_2?dchild=1&keywords=edible+wild+plants+florida&qid=1592169451&sr=8-2