Brachyglottis arborescens
Common name
Three Kings rangiora
Synonyms
Brachyglottis repanda var. arborescens (W.R.B.Oliv.) Allan
Family
Asteraceae
Flora category
Vascular – Native
Endemic taxon
Yes
Endemic genus
No
Endemic family
No
Structural class
Trees & Shrubs - Dicotyledons
NVS code
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.
BRAARB
Chromosome number
2n = 60
Current conservation status
The conservation 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.
Please note, threat classifications are often suggested by authors when publications fall between NZTCS assessment periods – an interim threat classification status has not been assessed by the NZTCS panel.
- Conservation status of New Zealand indigenous vascular plants, 2017 . 2018. 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. Department of Conservation. Source: NZTCS and licensed by DOC for reuse under the Creative Commons Attribution 4.0 International licence.
2017 | At Risk – Naturally Uncommon | Qualifiers: CD, IE
Previous conservation statuses
2012 | At Risk – Naturally Uncommon | Qualifiers: CD, IE
2009 | At Risk – Naturally Uncommon | Qualifiers: IE
2004 | Range Restricted
Brief description
Canopy tree of the Three Kings Islands. Bark stringy. Leaves curled, large, dark glossy green and white underneath. Flowers in clusters of small white flowers. Seeds small, with a tuft of white hairs.
Distribution
Three Kings Islands (present on all the main islands and also Hinemoa Rock within the Princes chain of islets and rock stacks.
Habitat
Meryta sinclairii forest and in coastal scrub. Sometimes found as an understorey shrub within the dense kanuka (Kunzea aff. ericoides) forest which dominates Great (Manawa Tawhi) Island.
Detailed description
Shrub- small tree up to 8 m high. Trunk up to 30 cm or more diameter at base; bark thick, in corky ridges; leaves very glossy, bullate, obovate in outline, very shallowly lobed to sinuate. Inflorescence; capitula small, panicle sparingly branched. Flowers lack ray florets, approximately 5 mm diameter, disc florets perfect, tubular-campanulate, dark greenish-yellow to sulphur yellow. Achene pappus-hairs longer than 3 mm, distinctly barbellate.
Flowering
November-February
Fruiting
January-March
Life cycle
Pappate achenes are dispersed by wind (Thorsen et al., 2009).
Propagation technique
Easy from fresh seed and cuttings. However, difficult to maintain as it is extremely susecptible to phytophora and verticillium wilt.
Etymology
brachyglottis: Name comes from the Greek words brachus meaning “short” and glottis meaning “the vocal apparatus of the larynx”
arborescens: Becoming a tree
Where To Buy
Occasionally available from specialist native plant nurseries.
TAXONOMIC NOTES
The large-leaved forms of North Auckland, Mayor and other coastal islands need further study.
Attribution
Description adapted by M. Ward from Allan (1961) and Dawson et al. (2011).
References and further reading
Allan, H. H. 1961. Flora of New Zealand. Vol. 1. Wellington: Government Printer. pg. 757-758.
Dawson, J., Lucas, R., Connor, J., & Brownsey, P. J. 2011. New Zealand’s Native Trees. Nelson: Craig Potton. pg. 160.
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 2009 Vol. 11 No. 4 pp. 285-309