Crassula helmsii (Kirk) Cockayne

Each carpel acuminate and subtended by a basal scale. Style c. half as long as ovary. Sepals and petals 1–2 mm long. Stems weak, floating and elongated when in water. Leaves linear to very narrow-ovate, mostly 2–6 mm long. Widespread. In ditches and on mud. Fl. winter–spring