Aquatic, perennial geophyte, up to 0.2-0.6 m high. Leaves basally tufted, linear, 14-25 mm wide, minutely fringed with cartilaginous hairs. Flowers 4-7, in a lax cluster, ± actinomorphic, ± bell-shaped; perianth tube ± 50 mm long, widening abruptly to a broad cup, segments 40-50 mm long, rose-pink usually greenish at base. Flowering time Sept., Oct. Fruit subglobose, lacking a beak.