An annual or perennial, suspended, aquatic plant with terete and sparsely branched filiform stems. Leaves are numerous and divided from the base into 3–6 segments. Inflorescence is a scape bearing 5–12 flowers with white or pale mauve corolla, rarely yellow with purple nerves. Fruit is a globose capsule that contains 4–6-angled seeds.
Nile Valley North of Nubia (Location: Delta).
North, tropical and South Africa, Madagascar, India.
Rice fields, ditches, pools.
Annual or perennial.
Height: 20-50(-80) cm.
