Lagenifera linearis Petrie
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 = 18
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 | Threatened – Nationally Critical | Qualifiers: CD, DP, RR, Sp
Previous conservation statuses
2012 | Threatened – Nationally Critical | Qualifiers: RR, Sp, St
2009 | At Risk – Naturally Uncommon | Qualifiers: DP
2004 | Range Restricted
Endemic. South Island: Lake Te Anau, Lake Manapouri, Mavora Lakes.
Inhabiting the short turf that develops along lake margins as well as gravelly ground on exposed lake shores. Its habitats are those which are exposed only briefly during summer; being otherwise flooded for most of the year
Wetland plant indicator status rating
FACW: Facultative Wetland
Usually is a hydrophyte but occasionally found in uplands (non-wetlands).
Glabrous annual rosette herb. Leaves apetiolate, linear to very narrowly linear-spathulate, mostly entire, very rarely with 1–2 teeth near apex, obtuse to acute, 10.0–25.0 × 0.5–2.0 mm. Peduncle naked, 10–30 mm long and 0.2–0.5 mm diameter at flowering, elongating to 25–45 mm at fruiting. Involucral bracts ovate to oblong, obtuse and fimbriate at apex, 1–1.5 mm long. Rays c. 8–12, white, 0.5–2.0 mm long. Disc yellowish green. Achenes obovoid-oblong, compressed, eglandular, 1.0–1.5 mm long; pappus usually of few bristles c. 0.1 mm long, sometimes 0 in mature achenes.
Easily distinguished from all other species of Brachyscome, except B. humilis by the mostly entire linear to narrowly linear-spathulate leaves, and annual growth habit. From B. humilis it differs by its ecology (lake margins vs alpine snow banks), strict annual growth habit, and smaller flowers with much shorter ray florets.
Pappate cypselae are dispersed by wind (Thorsen et al., 2009).
Can be grown in a pot that is kept partially submerged in a tub of water. Not an especially attractive or interesting species.
Extreme, narrow-range endemic of marginal turf that is extremely vulnerable to changes in lake water levels. Indications are that, although widespread it is not common at any particular site.
brachyscome: From Greek brachys ‘short’ and comus ‘hair’, refers to the lack of papys on the fruit
linearis: Linear (leaves)
Description from Webb et al. (1988)
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). pp 285–309.
Webb, C. J.; Sykes, W. R.; Garnock-Jones, P. J. 1988: Flora of New Zealand. Vol. IV. Naturalised Pteridophytes, Gymnosperms, Dicotyledons. 4. Christchurch, New Zealand, Botany Division, D.S.I.R.
NZPCN Fact Sheet citation
Please cite as: de Lange, P.J. (Year at time of access): Brachyscome linearis Fact Sheet (content continuously updated). New Zealand Plant Conservation Network. https://www.nzpcn.org.nz/flora/species/brachyscome-linearis/ (Date website was queried)