spotless watermeal
rootless duckweed
wolffia arrhiza latin

Also present are the nationally scarce Rootless Duckweed (Wolffia arrhiza) and Hairlike Pondweed (Potamogeton trichoides).

The rhynes contain rare plants such as Frogbit and Rootless Duckweed, along with many scarce invertebrates such as the Hairy Dragonfly and Water Scorpion.

Wolffia arrhiza is a species of flowering plant known by the common names spotless watermeal and rootless duckweed, belonging to the Araceae, a family rich in water-loving species, such as Arum and Pistia.

Also present are the nationally scarce Rootless Duckweed (Wolffia arrhiza) and Hairlike Pondweed (Potamogeton trichoides).