Three ponds in the area have the same plant
Relatively common at pond's edge. No sign of A. pinnata.
Local names = Water fern, Mosquito fern. First report sighting from Hagerman NWR. Look closely at center of second photo.
Floating aquatic plants. Look like mini triangular ferns. ID?
I noticed these small (less than 0.5 inch) clusters of water fern when I was photographing the surrounding duckweed (Spirodela sp.). Apparently (acc. to ITIS.gov) all the water fern occurring across the southern U.S. is now known as Azolla filiculoides, having previous been known under the names A. caroliniana (e.g. North-Central Flora) or A. microphylla (which BONAP still retains).
Water-race. Azolla, duckweed and Potamogeton cripsum.
I saw this Mosquito Fern in the Killbuck Marsh Wildlife Area.
Wolffia is pictured clinging to the fern.
Azolla (mosquito fern, duckweed fern, fairy moss, water fern) is a genus of seven species of aquatic ferns in the family Salviniaceae. They are extremely reduced in form and specialized, looking nothing like conventional ferns but more resembling duckweed or some mosses.