Petiole 12–50 cm long; lamina narrowly elliptic to narrowly ovate, 10–21 cm long, 2.5–4(–5)cm wide (length to width ratio 3.4–6.4); base attenuate; apex acuminate. Inner perianth lobes with apex acute; anthers 0.6–1.2 mm long, 0.3–0.5 mm wide; style c. 1 mm long; stigma 0.5–0.6 mm long. Flowers Dec.–Feb.
VVP, VRiv, MuF, GipP, Gold, CVU, HSF. Also naturalised WA, SA, NSW, ACT, Tas. Native to Europe, northern Africa, western Asia. Occurs in roadside drains and near edges of dams, lakes and slow-moving rivers, particularly in the Echuca-Shepparton-Rushworth area.
Aston (1973) suggested that the anther length to width ratio of this species could be used to distinguish it from A. plantago-aquatica. However, there appears to be no significant difference in this ratio for the two species.
