Japan Flora: Stems slender; leaves less than 1 mm. wide, narrowly linear; peduncles 1-2.5 mm. long; nutlets 2-5, sdpitate, about 3 mm. long, lunate, narrowly oblong, remotely cristate-dentate on back, the stipe 15-3.3 mm. long; style 2.5-3 mm. long, slender.
Honshu, Kyushu. Ryukyus and India. The species is cosmopolitan.