Enydra Lour.

1 species endemic Aust.; Qld, NSW

Enydra fluctuans Lour.

Perennial herb, aquatic or growing in swamps. Stems creeping, rooting at the nodes. Leaves opposite, oblong or lanceolate, petiolate or sessile and stem-clasping, 4–6 cm long, 6–10 mm wide, entire sinuate or toothed. Heads sessile in the forks of the stem or leaf axils. Involucral bracts 4; the 2 outer ones 3–6 mm long; the inner ones shorter; all longer than the florets. Ray florets in several rows, female, with very short 3-toothed rays. Disc florets tubular, bisexual. Coast near Sydney. Swamps. Fl. spring–summer