Raoulia mackayi Buchanan, Gnaphalium traversii var. mackayi (Buchanan) Kirk, Gnaphalium mackayi (Buchanan) Cockayne, Euchiton mackayi (Buchanan) Anderb.
Vascular – Native
Herbs - Dicotyledonous 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.
2n = 28
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. North Island: Ruahine and Tararua Ranges; South Island: throughout. Stewart Island: Mt Anglem only
Montane to alpine bogs, herbfield and grassland, often in wet sites and commoner in wetter areas
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).
FACU: Facultative Upland
Occasionally is a hydrophyte but usually occurs in uplands (non-wetlands).
Perennial herb with much-branched stems terminating in leafy rosettes and usually forming mats, 10-70 mm tall. Leaves mostly in basal rosettes; basal leaves cuneate to short petiole, densely white-tomentose on both surfaces including mid-vein but usually excluding petiole on upper, plane, elliptic to broad-elliptic or spathulate, usually obtuse, sometimes acute, mucronate, 3-20 × 2-6 mm; cauline leaves 1-few, apetiolate, reduced upwards and becoming ovate-triangular to linear, amplexicaul and finally scalelike. Capitula c.2-4 mm diameter, usually solitary, very rarely 2 together; subtending leaves < capitula; scape terminal, simple, erect, amongst leaves at flowering, usually elongating somewhat at fruiting. Involucral bracts elliptic-oblong, obtuse to subacute, 4.5-6.0 mm long; stereome green or tinged reddish purple at apex; lamina pale brown, with darker band at base; gap and margins clear or tinged reddish purple. Achenes glabrous, c.1.2 mm long.
Both Argyrotegium mackayi and A. nitidulum are mat-forming species with solitary terminal flowers. Argyrotegium nitidulum is distinguished from A. mackayi by the leaf hairs which are more or less straight, antrorse, appressed and glossy rather than tangled and white.
October - February
December - April
Pappate cypselae are dispersed by wind (Thorsen et al., 2009).
Difficult. Should not be removed from the wild
Where To Buy
Not commercially available
Fact sheet prepared by P.J. de Lange for NZPCN (1 June 2013)
References and further reading
Thorsen, M. J.; Dickinson, K. J. M.; Seddon, P. J. 2009: Seed dispersal systems in the New Zealand flora. Perspectives in Plant Ecology, Evolution and Systematics 11(4): 285-309.
NZPCN Fact Sheet citation
Please cite as: de Lange, P.J. (Year at time of access): Argyrotegium mackayi Fact Sheet (content continuously updated). New Zealand Plant Conservation Network. https://www.nzpcn.org.nz/flora/species/argyrotegium-mackayi/ (Date website was queried)