Schoenus nitens var. concinnus (Hook.f.) Cheeseman; S. moorei Kirk
Vascular – Native
The National Vegetation Survey (NVS) Databank is a physical archive and electronic databank containing records of over 94,000 vegetation survey plots - including data from over 19,000 permanent plots. NVS maintains a standard set of species code abbreviations that correspond to standard scientific plant names from the Ngä Tipu o Aotearoa - New Zealand Plants database.
2n = c.68
Current conservation status
The threat classification status of all known New Zealand vascular plant taxa at the rank of species and below were reassessed in 2017 using the New Zealand Threat Classification System (NZTCS) – more information about this can be found on the NZTCS website This report includes a statistical summary and brief notes on changes since 2012 and replaces all previous NZTCS lists for vascular plants. Authors: By Peter J. de Lange, Jeremy R. Rolfe, John W. Barkla, Shannel P. Courtney, Paul D. Champion, Leon R. Perrie, Sarah M. Beadel, Kerry A. Ford, Ilse Breitwieser, Ines Schönberger, Rowan Hindmarsh-Walls, Peter B. Heenan and Kate Ladley. Please note, threat classifications are often suggested by authors when publications fall between NZTCS assessment periods – a suggested threat classification status has not been assessed by the NZTCS panel.
2017 | Not Threatened
Previous conservation statuses
2012 | Not Threatened
2009 | Not Threatened
2004 | Not Threatened
Indigenous. North, South, Stewart and Chatham Islands. Present also in Australia.
Schoenus concinnus has a peculiar distribution. In the North Island, it has been found amongst sand dunes on the Karikari Peninsula and near Whatipu and then is mainly known from the central ranges and Mt Egmont. In the South Island it is widespread in coastal or alpine situations. On the Chatham Islands it is strictly coastal.
Coastal to alpine (up to 1200 m a.s.l.). In permanently damp, usually exposed and sunny situations. Often in coastal or alpine turf or along the margins of tidal streams, inland rivers, ponds and lakes.
Wetland plant indicator status rating
Information derived from the revised national wetland plant list prepared to assist councils in delineating and monitoring wetlands (Clarkson et al., 2021 Manaaki Whenua – Landcare Research Contract Report LC3975 for Hawke’s Bay Regional Council). The national plant list categorises plants by the extent to which they are found in wetlands and not ‘drylands’. The indicator status ratings are OBL (obligate wetland), FACW (facultative wetland), FAC (facultative), FACU (facultative upland), and UPL (obligate upland).
FACW: Facultative Wetland
Usually is a hydrophyte but occasionally found in uplands (non-wetlands).
Rhizomatous, tufted seed. Rhizomes lignaceous, up to 1.5 mm diameter, loosely covered by large, membranous, overlapping scales. Culms 10-250 mm long, less than 0.5 mm diameter, bright green to dark green, wiry, erect, striated, unbranched, densely tufted or widely spaced along rhizome. Leaves greater than, equal to or less than culms, upper leaves alternate, rigidly setaceous, semi-terete, margins rarely scabrid towards leaf apex; basal leaves reduced to red-purple, grooved, mucronate sheaths. Inflorescence terminal, capitate with crowded sessile spikelets, subtending bract greater than inflorescence. Spikelets 1(-3), 3.5-7.0 mm long, 2-3-flowered. Glumes 5-7, dark brown to almost black with green median nerve, 2-3 lowest smaller, empty. Hypogynous bristles 6, usually > nut, yellow-brown and scabrid towards the apex, often branched and basally plumose with long white hairs. Stamens 3. Style Branches 3. Nut ovoid to elliptical-oblong, 1.5-2.0 mm long, yellow-brown, smooth, glossy, surface cells minute (appearing as dimples), angles scarcely thickened.
Schoenus concinnus has been treated as a variety of S. nitens (R.Br.) Hook.f. Both species are superficially similar. Schoenus nitens differs by its broader culms, less densely tufted growth habit, taller stature, inflorescences of 2-many spikelets, obtuse rather than subacute bright chestnut-brown rather than dark brown to almost black glumes, and grey-brown to red-brown rather than yellow-brown, smaller nut (1.5 mm cf. 1.5-2.0 mm long). Both Schoenus nitens and S. concinnus differ from the other rush-like species by having well developed leaves.
October - January
December - May
Easily grown from the division of whole plants and from fresh seed. An attractive sedge that looks great in pots that are kept partially submerged and placed in the full sun.
concinnus: Charming, elegant
Where To Buy
Not commercially available
Fact sheet prepared for NZPCN by P.J. de Lange (8 September 2006). Description adapted from Moore & Edgar (1970)
References and further reading
Moore, L.B.; Edgar, E. 1970: Flora of New Zealand. Vol. II. Government Printer, Wellington.