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  4. Aciphylla crenulata

Aciphylla crenulata

Gertrude Valley.<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>
Gertrude Valley, January.<br>Photographer: John Smith-Dodsworth, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by-nc/4.0'>CC BY-NC</a>.
Young Range, Mt Aspiring.<br>Photographer: John Barkla, Date taken: 11/01/2013, 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>
Young Range, Mt Aspiring.<br>Photographer: John Barkla, Date taken: 11/01/2013, 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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Family

Apiaceae

Authority

Aciphylla crenulata J.B.Armstrong

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.

ACICRE

Chromosome number

2n = 22

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 | Qualifiers: DP

Previous conservation statuses

2012 | Not Threatened

2009 | Not Threatened

2004 | Not Threatened

Brief description

Herb with sparse spiky leaves which have a thickened notched margin. Inconspicuous unless flowering

Distribution

Endemic. South Island, close to and west of Main divide

Habitat

Higher rainfall snow tussock-herbfield. 900 - 1700 m a.s.l.

Features

Slender herb forming lax tufts to 60 cm tall in flower. Rosettes single or several. Leaves few, flexible, rather flaccid, 1-pinnate, to 15 cm long x 5 mm wide; sheath broad, thin; stipules slender, spinulose; primary pinnae in (1-)2-3(-4) pairs, laminae of pinna widely spaced, linear, 5-15 cm long x 2-5 mm wide, midrib often bright red, margins thickened and finely crenulate, tapering to pungent point. Male flowering stem slender, inflorescence elongate, dense-flowered, 10-30(-40) cm long; bracts many, spreading; bract sheathsshort, mebranous; bract stipules short, pungent; bract lamina slender, to 4 cm long. Umbels and umbellules on long slender rays. Female flowering stem denser, forming an inflorescence to 60 cm long; lower bracts often empty; peduncles and rays long, slender. Fruit of two mericarps; mericarps narrowly oblong-elliptic to elliptic, (6.0-)6.5-9.0 mm, with 3-4 even narrowly winged ribs, other ribs not evident, vittae evident as narrow dark ribs between wings

Similar taxa

Most similar in appearance to A. lyallii which is larger and whose leaves are variably either simple or with up to 7 leaflets or A. indurata which is only known from NW Nelson and which is also a larger plant and with 2-pinnate leaves

Flowering

December-January

Fruiting

February-March

Life cycle

Winged schizocarps are dispersed primarily by wind (Thorsen et al., 2009).

Etymology

aciphylla: From the Latin acicula ‘needle’ and the Greek phyllum ‘leaf’, meaning needle-leaf.

crenulata: From the Latin crenus ‘notch’, meaning with notches which give a leaf margin the appearance of having small rounded teeth

Where To Buy

Attribution

Description adapted from Allan (1961), Mark and Adams (1995), Webb and Simpson (2001) and Wilson (1996).

References and further reading

Allan, H.H. 1961. Flora of New Zealand. Government Printer, Wellington

Mark, A.F; Adams, N.M. 1995. New Zealand alpine plants, 2nd Edition. Godwit Publishing, Auckland

Wilson, H.D. 1996. Wild plants of Mt Cook National Park. Manuka Press, Christchurch

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

Webb, C.J. & Simpson, M.J.A. 2001. Seeds of NZ gymnosperms and dicotyledons. Manuka Press, Christchurch

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