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  4. Acaena anserinifolia

Acaena anserinifolia

Acaena anserinifolia.<br>Photographer: John Barkla, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by/4.0'>CC BY</a>. <a class='member-message' href='/nzpcn/why-join-nzpcn/' target='_blank'>Members can view a larger version of this image.</a>
Hooker Valley, December.<br>Photographer: John Smith-Dodsworth, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by-nc/4.0'>CC BY-NC</a>.
Acaena anserinifolia.<br>Photographer: John Barkla, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by/4.0'>CC BY</a>. <a class='member-message' href='/nzpcn/why-join-nzpcn/' target='_blank'>Members can view a larger version of this image.</a>
Acaena anserinifolia.<br>Photographer: John Barkla, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by/4.0'>CC BY</a>. <a class='member-message' href='/nzpcn/why-join-nzpcn/' target='_blank'>Members can view a larger version of this image.</a>
Gorge Creek, Canterbury.<br>Photographer: Mike Thorsen, Licence: All rights reserved. <a class='member-message' href='/nzpcn/why-join-nzpcn/' target='_blank'>Members can view a larger version of this image.</a>
Arthurs Pass.<br>Photographer: Mike Thorsen, Licence: All rights reserved. <a class='member-message' href='/nzpcn/why-join-nzpcn/' target='_blank'>Members can view a larger version of this image.</a>
Arthurs Pass.<br>Photographer: Mike Thorsen, Licence: All rights reserved. <a class='member-message' href='/nzpcn/why-join-nzpcn/' target='_blank'>Members can view a larger version of this image.</a>
Arthurs Pass.<br>Photographer: Mike Thorsen, Licence: All rights reserved. <a class='member-message' href='/nzpcn/why-join-nzpcn/' target='_blank'>Members can view a larger version of this image.</a>
Acaena anserinifolia.<br>Photographer: Mike Thorsen, Licence: All rights reserved. <a class='member-message' href='/nzpcn/why-join-nzpcn/' target='_blank'>Members can view a larger version of this image.</a>
Seed dispersal. Mount Climie, Upper Hutt.<br>Photographer: Jeremy R. Rolfe, Date taken: 10/08/2014, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by/4.0'>CC BY</a>. <a class='member-message' href='/nzpcn/why-join-nzpcn/' target='_blank'>Members can view a larger version of this image.</a>
Terawhiti Station, Wellington.<br>Photographer: Jeremy R. Rolfe, Date taken: 01/11/2006, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by/4.0'>CC BY</a>. <a class='member-message' href='/nzpcn/why-join-nzpcn/' target='_blank'>Members can view a larger version of this image.</a>
Terawhiti Station, Wellington.<br>Photographer: Jeremy R. Rolfe, Date taken: 01/11/2006, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by/4.0'>CC BY</a>. <a class='member-message' href='/nzpcn/why-join-nzpcn/' target='_blank'>Members can view a larger version of this image.</a>
Terawhiti Station, Wellington.<br>Photographer: Jeremy R. Rolfe, Date taken: 01/11/2006, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by/4.0'>CC BY</a>. <a class='member-message' href='/nzpcn/why-join-nzpcn/' target='_blank'>Members can view a larger version of this image.</a>
Holdsworth, Tararua Range.<br>Photographer: Jeremy R. Rolfe, Date taken: 08/02/2008, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by/4.0'>CC BY</a>. <a class='member-message' href='/nzpcn/why-join-nzpcn/' target='_blank'>Members can view a larger version of this image.</a>
Holdsworth, Tararua Range.<br>Photographer: Jeremy R. Rolfe, Date taken: 08/02/2008, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by/4.0'>CC BY</a>. <a class='member-message' href='/nzpcn/why-join-nzpcn/' target='_blank'>Members can view a larger version of this image.</a>
Holdsworth, Tararua Range.<br>Photographer: Jeremy R. Rolfe, Date taken: 08/02/2008, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by/4.0'>CC BY</a>. <a class='member-message' href='/nzpcn/why-join-nzpcn/' target='_blank'>Members can view a larger version of this image.</a>
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Common name

bidibid, hutiwai, piripiri

Synonyms

Acaena pusilla (Bitter) Allan var. pusilla, A. pusilla var. suprasericascens Bitter, Acaena viridior (Cockayne) Allan. The names A. anserinifolia var. sericeinitens (Bitter) Allan and var. paucidens, are referrable to A. profundeincisa (Bitter) B.Macmillan.

Family

Rosaceae

Authority

Acaena anserinifolia (J.R.Forst. et G.Forst.) J.B.Armstr.

Flora category

Vascular – Native

Endemic taxon

Yes

Endemic genus

No

Endemic family

No

Structural class

Herbs - Dicotyledons other than Composites

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.

ACAANS

Chromosome number

2n = 42

Current conservation status

  • Conservation status of New Zealand indigenous vascular plants, 2017

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.

Source: NZTCS and licensed by DOC for reuse under the Creative Commons Attribution 4.0 International licence.

2017 | Not Threatened

Previous conservation statuses

2012 | Not Threatened

2009 | Not Threatened

2004 | Not Threatened

Distribution

Endemic. Found throughout the North, South, Stewart, and Chatham Islands. Naturalised on the Auckland and Campbell Islands.

Habitat

Abundant from lowland to lower subalpine forest margins and in shrublands.

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).

Features

Stoloniferous, prostrate, trailing and perennial herb, forming diffuse to dense patches up to 1 m diam. Prostrate stems 1-1.5 mm diam. and < 1 m long, erect stems 1-1.5 mm diam., < 150 mm long (unless scrambling up through surrounding vegetation, in which case taller). Leaves 10-75 mm long, stipules 3-8-fid, leaflets 9-13, oblong, 4-17 x 2-9 mm, 7-15-toothed to base, dull green to yellow-green, basal leaves often mottled brown, upper surface sparsely to densely hairy, undersides paler, glaucescent to silvery, and very silky hairy, teeth tipped with a tuft of brush-like hairs. Inflorescence scape 40-120 mm long, covered in long, appressed hairs. Capitulum 5-8 mm diam. at flowering, 10-20 mm diam. (including spines) at fruiting; florets c. 50-60; sepals 4; stamens 2; anthers white or rose; style 1; white; achene 1. Fruit obconic, 3 x 12 mm, hairy, spines 4, pale brown, 4-9 mm long, barbed.

Similar taxa

Often grows with Acaena novae-zelandiae but can be recognised by the distinctive tuft of brush-like hairs surmounting the leaf teeth apices. Undersides of leaves are distinctly silvery due to dense covering of appressed silky hairs. A. juvenca and A. emittens are closely related. Both can be easily recognised by their very gracile, slender, stems, rather diffuse foliage, by the distal 3-5 leaflets obovate and larger than the basal leaflets, and by the usually entire stipules.

Flowering

October - January

Flower colours

Red/Pink, White

Fruiting

December - April

Life cycle

Spiny hypanthia are dispersed by attaching to fur, feathers and clothing and possibly also dispersed by wind and granivory (Thorsen et al., 2009).

Propagation technique

Easily grown from fresh seed and from rooted pieces.

Etymology

acaena: From the Greek ‘akanthos’ thorn, referring to the spiny calyx that many species have

anserinifolia: With leaves like Potentilla anserina

Attribution

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 2009 Vol. 11 No. 4 pp. 285-309

NZPCN Fact Sheet citation

Please cite as: de Lange, P.J. (Year at time of access): Acaena anserinifolia Fact Sheet (content continuously updated). New Zealand Plant Conservation Network. https://www.nzpcn.org.nz/flora/species/acaena-anserinifolia/ (Date website was queried)

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