Wolffia arrhiza (Rootless Duckweed) is a species of perennial herb in the family Araceae. It has a self-supporting growth form. It is associated with freshwater habitat. Rootless Duckweed is native to the contiguous United States, São Paulo, Mata Atlântica, and Rio de Janeiro. It has simple, broad leaves. It is a photoautotroph. Individuals can grow to 0.001 m.
EOL has data for 20 attributes, including: