Brachyglottis stewartiae
Synonyms
Senecio stewartiae J.B.Armstr., Senecio muelleri Kirk
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.
BRASTE
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: RR, Sp, St
Previous conservation statuses
2012 | At Risk – Naturally Uncommon | Qualifiers: RR, Sp
2009 | At Risk – Naturally Uncommon | Qualifiers: DP
2004 | Range Restricted
Brief description
Large spreading grey-green shrub inhabiting coastal forest of southern South Island islands. Twigs brittle and bearing leaf scars. Leaves 7-18cm long, narrow, rolled, thin, shiny grey-green, whiteish underneath, margin wavy. Flowers 2cm wide with many radiating narrow yellow petals, clustered together.
Distribution
Endemic. Stewart Island. Including Snares, Solander and Herekopare islets of the Foveaux Strait.
Habitat
Sheltered coastal shrub forest. Prefers sheltered eastern slopes.
Detailed description
Shrub or tree up to 6 m or more tall. Branchlets, spreading stout, clad in persistent leaf-bases. Leaves close-set, subcoriaceous, 70-180 x 20-40 mm, ovate to elliptic-lanceolate, acute to acuminate, narrowed to broad appressed base, glabrous above (dark green), clad below in appressed thin white tomentum; veinlets becoming evident and glabrous when old. Inflorescence terminal in short dense panicles; pedicels densely glandular-pubescent, upper bracts linear. Capitula up to 20 mm diameter; phyllaries narrow-oblong, obtuse, glandular-pubescent on backs; ray-florets 10-15, ligules yellow, narrow, contorted. Achenes approximately 2 mm long, narrow-oblong, grooved, sparsely pubescent, becoming glabrous; pappus-hairs up to 5 mm. long, barbellate.
Similar taxa
Brachyglottis huntii, which has young leaves with fulvous tomentum on upper surface becoming almost glabrous with maturity giving a paler green appearance; generally smaller leaves (50-100 x 20-30 mm); flowers with more ray florets (15-20). Geographically these two species do not overlap (see that species’ distribution).
Flowering
December - February
Flower colours
Yellow
Fruiting
January - March
Life cycle
Pappate achenes are dispersed by wind (Thorsen et al., 2009).
Etymology
brachyglottis: Name comes from the Greek words brachus meaning “short” and glottis meaning “the vocal apparatus of the larynx”
Attribution
Description adapted by M. Ward from Allan (1961).
References and further reading
Allan, H. H. 1961. Flora of New Zealand. Vol. 1. Wellington: Government Printer. pg. 750.
Hay, C. H., Warham, J., & Fineran, B. A. 2004. The vegetation of The Snares, islands south of New Zealand, mapped and discussed. New Zealand Journal of Botany, 42(5), 861-872.
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