Anisotome antipoda
Biostatus
Native – Endemic taxon
Category
Vascular
Structural class
Herbs - Dicotyledons other than Composites
Flower colours
Red/Pink, Violet/Purple
Detailed description
Stout perennial plants up to 1.2 m tall. Basal leaves ovate to oblong 0.1-0.6 x 0.06-0.15 m, 3-4-pinnate, divisions widely divergent to divaricate, and in many planes; leaflets 5-7 pairs, ovate, shortly petiolulate to sessile, coriaceous; ultimate segments linear, 10-30 x 1-15 mm, adaxially narrowly grooved, apices pungent, acicular; petioles 30-300 x 3-15 mm, abaxially broadly grooved, sheaths 25-70 x 20-35 mm, apically prolonged as a broad lobe, this free from the petiole for 1-3 mm; cauline leaf sheaths inflated; peduncles 20-100 mm long, often several at a node. Inflorescence axis 0.6-1.2 m x 0.1-0.3 m. Flowers dark pink to magenta. Staminate involucre of several linear bracts 10-25 x 1-1.5 mm; involucel of similar linear bracteoles 3.0-15.0 x 0.5-1.0 mm; rays 10-25, 10-40 mm; pedicels 20-40, 2-6 mm long. Carpellate involucre similar, , linear bracts 10.0-30.0 x 0.5-1.0 mm; involucel bracteoles linear, 3-15 x 0.5-1 mm, rays 10-25, 10-40 mm long, pedicels 10-30, 0.5 mm long; styles stout, 0.5-1 mm long, divergent, stigmas capitate, reddish. Mericarp narrowly elliptic to narrowly oblong (4.5-)5.0-7.0 mm long; apex and base obtuse; 3-5-ribbed, ribs even, equal, thin, narrowly winged, opague. Surface dull, ribs pale brown, vittae obscured
Similar taxa
Distinguished from A. latifolia by the much more finely divided leaves and dark pink to magenta flowers.
Distribution
Endemic. Auckland, Campbell and Antipodes Islands
Habitat
Coastal to montane. On cliffs, rock ledges, sodden areas of exposed peat and in herbfield. Often sympatric with A. latifolia Hook.f.
Current conservation status
The conservation status of all known New Zealand vascular plant taxa at the rank of species and below were reassessed in 2022-2023 using the New Zealand Threat Classification System (NZTCS) – more information about this can be found on the NZTCS website. This report includes replaces all previous NZTCS lists for vascular plants. Previous assessments can be found here.
- Conservation status of vascular plants in Aotearoa New Zealand, 2023. 2024. Peter J. de Lange, Jane Gosden, Shannel P. Courtney, Alexander J. Fergus, John W. Barkla, Sarah M. Beadel, Paul D. Champion, Rowan Hindmarsh-Walls, Troy Makan and Pascale Michel Department of Conservation. Source: NZTCS and licensed by DOC for reuse under the Creative Commons Attribution 4.0 International licence.
2023 | At Risk – Naturally Uncommon | Qualifiers: CD, PD, RR
Threats
Not Threatened. Listed because it is a narrow range endemic. In the past this species was seriously threatened by browsing animals on Campbell Island. Following their eradication it is now locally abundant there. On the Auckland Islands it is uncommon on the main island which still harbours feral pigs. Otherwise it is abundant on the outer islands and also the Antipodes Island group.
Detailed taxonomy
Genus
Family
Synonyms
Calosciadium antipodum (Hook.f.) Endl. ex Walp., Ligusticum antipodum (Hook.f.) Homb. et Jacquinot ex Decne
Endemic taxon
Yes
Endemic genus
No
Endemic family
No
Ecology
Flowering
October - March
Fruiting
March - May
Life cycle and dispersal
Winged mericarps are dispersed by wind (Thorsen et al., 2009).
Propagation technique
Easily grown from fresh seed but fickle in cultivation. Dislikes humidity, warm climates and prone to sudden collapse even when apparently flourishing.
Other information
Where To Buy
Not commercially available
Etymology
anisotome: Unequal sided
antipoda: Named after the Antipodes i.e. Australia or New Zealand which are on the opposite side of the world from Europe
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.
ANIANT
Previous conservation statuses
The conservation status of all known New Zealand vascular plant taxa at the rank of species and below were reassessed in 2022-2023 using the New Zealand Threat Classification System (NZTCS) – more information about this can be found on the NZTCS website. This report includes replaces all previous NZTCS lists for vascular plants. Previous assessments can be found here.
- Conservation status of vascular plants in Aotearoa New Zealand, 2023. 2024. Peter J. de Lange, Jane Gosden, Shannel P. Courtney, Alexander J. Fergus, John W. Barkla, Sarah M. Beadel, Paul D. Champion, Rowan Hindmarsh-Walls, Troy Makan and Pascale Michel 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
2012 | At Risk – Naturally Uncommon | Qualifiers: RR
2009 | At Risk – Naturally Uncommon | Qualifiers: OL
2004 | Range Restricted
Referencing and citations
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 2009 Vol. 11 No. 4 pp. 285-309
Attribution
Fact sheet prepared by P.J. de Lange for NZPCN (1 June 2013)
NZPCN Fact Sheet citation
Please cite as: de Lange, P.J. (Year at time of access): Anisotome antipoda Fact Sheet (content continuously updated). New Zealand Plant Conservation Network. https://www.nzpcn.org.nz/flora/species/anisotome-antipoda/ (Date website was queried)