bastard grass, hook sedge
Uncinia egmontiana Hamlin, Uncinia sivestris var. squamata Hamlin
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 = 88
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
Endemic. New Zealand: North Island (Mt Egmont), South and Stewart Islands – apparently absent from Fiordland.
Coastal to alpine. In coastal turf, tussock grassland, alpine mires, bogs and shrubland overlying peat.
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).
Densely caespitose, dull red or reddish-green (rarely green) plants, 250-400 mm tall. Culms c.300.0 × c. 0.5 mm, glabrous, subtrigonous or almost terete; basal sheaths straw-coloured or light brown. Leaves 4–6 per culm, culms, 1.0-1.5 mm wide, moderately scabrid on margins and upper surface. Spikes 3.5-120.0 × c.3 mm, female flowers c.10–20, rather distant, internodes to 12 mm long at base of spike, c.3 mm long above. Glumes = or >, or rarely slightly < utricles, persistent, ovate-lanceolate, acute, membranous, red or green with pale hyaline margins. Utricles 4.5-6.0 × c.1.0 mm, subtrigonous, elliptic-lanceolate, striated or scarcely nerved, grey-green or reddish grey, contracted below to a stipe usually slightly > 1.5 mm long, narrowed above to a beak slightly < 1.5 mm long
From those other Carices with hooked utricles and persistent glumes, with the exceptions of C. silvestris (Hamlin) K.A.Ford and C. strictissima (Petrie) K.A.Ford, C. egmontiana can be distinguished from by having glabrous, semi-terete culms. Carex silvestris differs by its bright green rather than usually dull red or reddish green leaves, few-nerved, smaller utricles (< 4.5 mm cf. > 5 mm long) which are green rather than grey-green or reddish grey.
October - November
November - August
Easily grown from fresh seed and by division of established plants. Prefers a permanently moist, peaty soil but will grow in most substrates. Except in cool climates this species is best planted in semi-shade.
carex: Latin name for a species of sedge, now applied to the whole group.
egmontiana: Of Mount Egmont
Fact sheet prepared fro NZPCN by Peter J. de Lange 17 August 2006. Description adapted from Moore and Edgar (1970).
References and further reading
Moore, L.B.; Edgar, E. 1970: Flora of New Zealand. Vol. II. Government Printer, Wellington.
NZPCN Fact Sheet citation
Please cite as: de Lange, P.J. (Year at time of access): Carex egmontiana Fact Sheet (content continuously updated). New Zealand Plant Conservation Network. https://www.nzpcn.org.nz/flora/species/carex-egmontiana/ (Date website was queried)