Powered by the Centre for Invasive Species Solutions
Plant Form: Submerged aquatic perennial herb.
Size: Stems up to 6 m long but submerged.
Stem: Green to brownish, slender, buoyant near surface. Upper stems crowded together.
Leaves: In rings of 3-5 around stem, 5 to 20 mm long, bright green.
Flowers: Inconspicuous, solitary floating, white to purplish, 3 petaled, on whitish flowering stems.
Fruit and Seeds: Do not occur in Australia currently, but small egg-shaped capsules 6-9 mm long.
Habitat: Freshwater ponds, shallow lakes, waterholes, reservoirs.
Distinguishing Features: Generally shorter leaves and less conspicuous flowers than lookalikes.