Citation: L., Sp. Pl. 342 (1753).

Synonymy: Not Applicable

Common name: None

Description:
Aquatic plants with a woody rhizome; leaf blade linear-lanceolate to elliptic, cordate to cuneate at the base.

Flowers bisexual; inflorescence a verticillate pyramidal usually compound panicle; stamens 6, in pairs opposite the petals; filaments filiform; carpels 10-20, free, arranged in a whorl; style ventral, filiform.

Fruit a 1-seeded achene.

Distribution:  Cosmopolitan with about l0 species, 2 in Australia.

Biology: No text

Author: Not yet available