Druce’s bastard grass, Druce’s hook sedge
Uncinia drucei Hamlin; Uncinia drucei var. pauciflora 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, South and Stewart Islands from Mt Hikurangi and Mt Taranaki south.
Alpine. In cushion bog, fellfield, snow banks, seepages and herbfield
Stoloniferous, widely spreading, pale green to reddish-green plants. Stolons c.0.5 mm diameter. Culms 50.0-200.0 × 0.3-1.0 mm, glabrous; basal bracts light brown or straw-coloured. Leaves 5-6(-8) per culm, < culms, 1.0-1.5 mm wide, bright green, soft, the abaxial surface with 3-5 very pale green, raised veins, margins scabrid and tapering towards the narrow, triangular apex. Spikes 05-20 × 3–4 mm, up to 10 mm diam. at maturity, oblong, female flowers 7–18, densely crowded, internodes 0.5-1.5 mm long. Glumes = or > utricles, deciduous, subacute, membranous, pale brown with broad green midrib. Utricles 4–5 × c.1 mm, trigonous, elliptic-lanceolate, dark brown, shining, smooth except for a prominent lateral nerve, widely spreading when ripe, slightly contracted below to a stipe c.1 mm long and above to a beak c.1.5 mm long
Close to Carex edura K.A.Ford, which is a very variable species. From Carex edura, C. drucei differs by its widely spreading, stoloniferous rather than tufted or shortly rhizomatous growth habit, usually more numerous, much narrower, grass-like, soft rather than harshly scabrid leaves, and by the shorter, oblong rather than broadly pyramidal spikes with smaller dark-brown rather than green-brown to dark brown glossy utricles
October - January
December - April
Unknown. Probably easily cultivated in an alpine house of rock garden, grown from fresh seed and by division of established plants.
carex: Latin name for a species of sedge, now applied to the whole group.
drucei: Named after Anthony (Tony) Peter Druce, one of New Zealand’s most respected field botanist (1920-1999).
New Zealand Botanical History
For a brief biography for this plant is named, see this article in Te Ara - The Encyclopedia of New Zealand. Hundreds of Tony’s famed plant lists can be found here and back-issues of regional Botanical Society Journals which he contributed can be accessed here.
Fact Sheet prepared for NZPCN by P.J. de Lange 30 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 drucei Fact Sheet (content continuously updated). New Zealand Plant Conservation Network. https://www.nzpcn.org.nz/flora/species/carex-drucei/ (Date website was queried)