Description
Medium-sized, upright, clump-forming, moderately growing evergreen aquatic plant, perennial (H 0,8-1 m, W 0,3-0,5 m). Stems round in cross-section (diameter 0,5-1 cm), smooth, vividly coloured, light green, with cross-wise light yellow stripes. Leaves small, unremarkable, appressed to the stem. Flowers in loose spikes (5-10 cm) atop of stems, brown. Flowering period: June-August. Grows well in water 20-50 cm deep.