Mostly terrestrial, mat-forming. Leaves linear-obovate, 0.8–5 mm long, 0.5–1.5 mm wide, obscurely 3-veined, petiolate; upper leaves not rosetted. Flowers usually paired, a male and female together in opposite axils; bracteoles linear-triangular, 0.2–0.5 mm long, deciduous; stamen 0.4–1 mm long, not elongating as fruit ripens, filament shorter than ripe fruit; styles erect, 0.1–0.3 mm long, persistent. Fruit subcordate, 0.5–0.8 mm long, 0.7–0.9 mm wide, subsessile, distinctly thicker at base, dark brown; wing very narrow. Flowers mainly Sep.–Dec.; fruits present most of year.
MuM, Wim, GleP, VVP, VRiv, MSB, RobP, MuF, GipP, OtP, Gold, CVU, NIS, EGL, EGU, HSF. Also SA, Qld, NSW, Tas. Widespread in Victoria, chiefly in drier inland areas, usually on river floodplains or other places subject to inundation.
Source:
Jeanes, J.A. (1999). Callitrichaceae. In: Walsh, N.G.; Entwisle, T.J., Flora of Victoria Vol. 4, Cornaceae to Asteraceae, pp. 459–463. Inkata Press, Melbourne.