Perennial, erect herb, up to 0.6 m high with descending stoloniferous base to each shoot. Flowers: head subsessile or inflorescence rays very short; spikelets 2-10, up to 30 x 3-5 mm, lanceolate; glumes dark reddish brown; Oct.-Apr. Fruit a transversely undulate nutlet.
Perennial herb, up to 0.6 m high. Head subsessile or inflorescence rays very short. Spikelets up to 30 mm long, lanceolate. Nut rugose. Glumes dark reddish brown.