Covering the Heathcote River here at the moment.a
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?
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.