Mitrasacme novae-zelandiae Hook.f. var. novae-zelandiae
Vascular – Native
Herbs - Dicotyledons other than Composites
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.
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
Cushion-forming, dark green to green plant of tussock grasslands, cushion bogs and heaths. Cushions 100 × 30 mm, leaves tightly overlapping, 2.8–4.5 × 0.5–0.9 mm, linear-oblong, concavo-convex with pale glass-like margins and prominent, pale hair like tips. Flowers white, bell-shaped.
Endemic. New Zealand: North West Nelson to Fiordland. Stewart Island plants and some specimens from Fiordland whose leaves have ciliate bases may represent another, as yet undescribed entity.
Montane to alpine in wet tussock (Chionochloa) grassland, cushion bogs (often admixed with Donatia novae-zelandiae) and heath land.
Wetland plant indicator status rating
OBL: Obligate Wetland
Almost always is a hydrophyte, rarely in uplands (non-wetlands).
Perennial dark green, bright green to a;lmost glaucescent plants forming cushions up to 100 × 30 mm. Leaves sessile, tightly imbricate, glabrous with indistinct midrib; lamina 2.8–4.5 × 0.5–0.9 mm, linear-oblong, concavo-convex; margins minutely hyaline in distal half or for most their length; apex with apiculum 0.1–0.5 mm long. Bracts similar to leaves, glabrous; lamina 2.4–3.0 × 0.5–0.7 mm, linear to oblong; apiculum 0.2–0.3 mm long, hyaline. Flowers, white, pedicellate. Pedicels < 0.1 mm, glabrous. Calyx tube 0.4–0.6 mm long; lobes 1.1–2.1 × 0.4–1.0 mm, narrowly deltoid to deltoid unequal (with one pair slightly larger) or ± equal; apiculum 0.1–0.2 mm, glabrous, hyaline. Corolla campanulate; tube 1.7–3.0 mm long; lobes glabrous 0.6–1.0 × 0.8–1.2 mm, obtuse, ± acuminate. Styles 0.4–0.5 mm long. Capsule 2.2–3.4 × 1.9–2.5 mm; locules ± globular; wings distal, boat-shaped. Seed 0.6–0.7 × 0.4–0.5 mm, oblong-elliptic, buff, orange-brown to nut brown.
Distinguished from S. montana var. helmsii by the sessile rather than weakly petiolate, rigid leaves whose margins have a distinctly (rather than indistinct) hyaline margin and hyaline apiculus. Both varieties are sympatric in the Paparoa ranges, North Westland.
October - February
January - May
novae-zelandiae: Of New Zealand
A full revision of the New Zealand Mitrasacme is required. When Dunlop (1996) erected the Australasian genus Schizacme they indicated that the New Zealand taxa Mitrasacme montana var. helmsii and M. novae-zelandiae var. novae-zelandiae were congeneric with Australian species of Schizacme but did not provide a formal treatment of them (Webb & Simpson 2001). Aside from the generic position, morphological evidence suggests that M. montana var. helmsii needs formal elevation to species rank, and further some Fiordland and Stewart Island populations currently attributed to M. novae-zelandiae var. novae-zelandiae may warrant segregation and formal taxonomic recognition.
Fact sheet prepared for NZPCN by P.J. de Lange (12 November 2014). Description adapted from Allan (1961) and Webb & Simpson (2001), supplemented with observations made from dried material.
References and further reading
Dunlop, C.R. 1996: Schizacme. Pp. 58-59, 314 in Orchard, A.E. (ed.) Flora of Australia. Vol 28: Gentianales. Melbourne, CSIRO publishing and Australian Biological Resources Study.
Webb, C.J. & Simpson, M.J.A. 2001: Seeds of New Zealand Gymnosperms and Dicotyledons. Christchurch, Manuka Press.
NZPCN Fact Sheet citation
Please cite as: de Lange, P.J. (Year at time of access): Schizacme novae-zelandiae Fact Sheet (content continuously updated). New Zealand Plant Conservation Network. https://www.nzpcn.org.nz/flora/species/schizacme-novae-zelandiae/ (Date website was queried)