- ≡ Scirpus setaceus L., Sp. Pl. (1753)
- ≡ Mariscus setaceus (L.) Moench., Methodus (Moench) 350 (1794)
- ≡ Schoenoplectus setaceus (L.) Palla (1907)
Forming a dense, bright green turf or in small ± circular patches, 3–15–(20) cm high; rhizome short, very slender. Stems erect, terete, filiform. Leaves much < stems,± 0.5 mm wide, few; sheaths hyaline, light brown often reddish towards base. Inflorescence apparently lateral, of 1–2 spikelets; bract > spikelets, filiform. Spikelets 2–4 mm long, ovate. Glumes slightly < 1.5 mm long, striate, dark brown with green midrib, obtuse, strongly keeled. Hypogynous bristles 0. Stamens 2. Stigmas 3. Nut slightly < 1 mm long, ± biconvex, brown, shining, minutely apiculate, with noticeable longitudinal ribs and fine transverse bars between ribs.
[From: Healy and Edgar (1980) Flora of New Zealand. Volume 3 as Scirpus setaceus L.]