forest bastard grass, hook sedge
Uncinia silvestris 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
Carex silvestris (Hamlin) K.A.Ford
Endemic. New Zealand, North Island (Pureora and the Kaimai Range south), South and Stewart Islands
Lowland to upper montane forest. Often rather local and probably warranting listing as Naturally Uncommon/Sparse.
Bright green, densely caespitose plants. Culms 200.0-400.0 × c.0.5 mm, glabrous; basal bracts light cinnamon-brown or yellow-brown, not shining. Leaves 4-5 per culm, ± = or slightly > culms, 0.5-2.0 mm wide, bright green, tapering to a long filiform tip, scabrid on margins and on upper surface towards leaf-tip. Spikes 35-100 × 2–3 mm, often bracteate with the leaf-like bract much > spike, female flowers c.10–20, internodes 3-5 mm long towards base of spike, 1-2 mm long above. Glumes much < utricles, persistent, ovate, acute or subacute, membranous, very faintly nerved, midrib pale green. Utricles 3.5-5.0 mm long, slightly < 1 mm diameter, plano-convex, concavo-convex or subtrigonous, oblong or ovoid-lanceolate, light green, rarely greenish brown, membranous, few-nerved or smooth, stipe c.1 mm long, narrowed above to a distinct beak 1.0-1.5 mm long
Distinguished from all other species with persistent glumes by the glabrous culms and glumes which are conspicuously shorter than the utricles( see also Carex egmontiana (Hamlin) K.A.Ford)
October - November
November - February
Easily grown from fresh seed and by division of established plants. Prefers a permanently moist, peaty soil but will grow in most substrates. Best in semi-shade.
carex: Latin name for a species of sedge, now applied to the whole group.
silvestris: Of forests
Where To Buy
Not Commercially Available
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.