Can you help identify these plants I found?

Looks like some type of water lettuce or duck weed? Not sure it grows submerged.




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Did you find them under the water, or at the water's edge? I don't know myself what these are, but the distinction is important.

Definitely not water lettuce or duckweed. Idk what it is exactly, but I'd guess frog's-bit: http://aquaplant.tamu.edu/plant-identification/alphabetical-index/frogs-bit/

but I just got that from perusing the ID list of emergent plants on this site: http://aquaplant.tamu.edu/plant-identification/

Cool! I used to live by the Hillsborough but near me it was all water hyacinth.