Syst. Veg. 3: 513 (1818) APNI
Submerged herb, with branches flattened, up to c. 4 m long. Leaf sheath free, up to c. 1.5 cm long, becoming lacerated or persisting as numerous long fibres; ligule absent. Leaves sessile; lamina linear, 3–1 lcm long, 0.2–0.4 cm wide, translucent; base attenuate to acute; margin entire, flat; apex acute to mucronate; 3(or 5) principal longitudinal veins, with numerous fine secondary longitudinal veins. Inflorescence c. 4–10-flowered. Infructescence 0.5–1 cm long. Fruiting carpels c. 3–4 mm long (including distal point), basally with 3 low, smooth or faintly tuberculate dorsal ridges and a single ventral bump, distally with a slender, ± straight point c. 0.5 mm long.
This European species has been once recorded for Australia from the Murray River. Aston (1973) considered this collection to be probably from Victoria or New South Wales. Flowering and fruiting times (in Australia) unknown.
Aston, H.I. (1973). Aquatic plants of Australia, Melbourne University Press, Melbourne.
|Bioregion||Occurrence status||Establishment means|
|Central Victorian Uplands||extinct||introduced|