Limnobium spongia, undersides of leaves, reflexed flower pedicels after flowering (lower right); photos: S.L. Winterton
Limnobium spongia, undersides of leaves, reflexed flower pedicels after flowering (lower right); photos: S.L. Winterton
Limnobium spongia and L. laevigatum leaves of young plants, compared; photo: © Gerald B. Pottern
Limnobium laevigatum and L. spongia aerial leaf undersides, compared; photo: © Gerald B. Pottern