Robust perennial herb. Branches erect, c. 20–30(–200) cm long, usually zigzagged. Leaves 5–10(–25) cm long, 0.4–1 mm wide; undamaged apex 2-toothed or truncate. Perennating swollen shoots absent. Inflorescence raised to water surface on an axis which is up to 1 m long; axis coiled after pollination. Carpels (2–)4(–6), initially subsessile, stalk elongating as carpels mature until it is longer than carpel. Fruiting carpel 3–4 long, 2–3 mm diam. Flowers and fruits (Oct.–)Nov.–Mar.
MuM, Wim, VVP, VRiv, GipP, OtP, WaP, Gold, CVU, DunT, EGL. Also WA, SA, NSW. New Zealand. Occurs in brackish to saline coastal lagoons and lakes, estuaries and inland lakes.
Source:
Conn, B.J. (1994). Potamogetonaceae (including Ruppiaceae). In: Walsh, N.G.; Entwisle, T.J., Flora of Victoria Vol. 2, Ferns and Allied Plants, Conifers and Monocotyledons, pp. 147–155. Inkata Press, Melbourne.
