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  4. Anemonastrum tenuicaule

Anemonastrum tenuicaule

Hunter Mountains, Fiordland.<br>Photographer: Jesse Bythell, Date taken: 19/12/2012, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by-nc/4.0'>CC BY-NC</a>. <a class='member-message' href='/nzpcn/why-join-nzpcn/' target='_blank'>Members can view a larger version of this image.</a>
Flagstaff Hill, Dunedin (December).<br>Photographer: John Smith-Dodsworth, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by-nc/4.0'>CC BY-NC</a>.
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Hunter Mountains, Fiordland.<br>Photographer: Jesse Bythell, Date taken: 19/12/2012, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by-nc/4.0'>CC BY-NC</a>. <a class='member-message' href='/nzpcn/why-join-nzpcn/' target='_blank'>Members can view a larger version of this image.</a>
Hunter Mountains, Fiordland.<br>Photographer: Jesse Bythell, Date taken: 19/12/2012, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by-nc/4.0'>CC BY-NC</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

New Zealand anemone

Synonyms

Ranunculus tenuicaulis Cheeseman; Anemone tenuicaulis (Cheeseman) Parkin et Sledge; Anemonidium tenuicaule (Cheeseman) Christenh. et Byng

Family

Ranunculaceae

Authority

Anemonastrum tenuicaule (Cheeseman) de Lange et Mosyakin

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.

ANETEN

Chromosome number

2n = 28

Current conservation status

  • Conservation status of New Zealand indigenous vascular plants, 2017

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). 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.

2012 | At Risk – Naturally Uncommon | Qualifiers: Sp

Previous conservation statuses

2009 | At Risk – Naturally Uncommon

2004 | Sparse

Distribution

Endemic. New Zealand, North and South Islands from the Tararua ranges south.

Habitat

Upper montane to subalpine habitats (c.900-1300 m a.s.l.) where it grows in herbfield and short to tall tussock grassland. usually in damp sites, flushes or seepages.

Features

Perennial, rhizomatous herb (50-)150-500 mm tall. Rhizomes erect or creeping. Basal Petioles 20-150 mm long somewhat channeled, glabrescent, sparsely covered with appressed bristle-like hairs. Leaves 1-4(-6), 10-30 x 10-20 mm, 3-foliolate light green above, paler beneath, somewhat fleshy, leaflets cut to about half of length, into 3 entire or trifid segments, these sessile or shortly petiolate, sparsely bristly hairy above, cuneate at base, apex acute; subfloral leaves trifid, cuneate. Flowers solitary, nodding, 10-150 mm diameter. Peduncle 10-100-150 mm long, sparsely covered in appressed bristly hairs. Perianth segments 5-7, pink to red-brown, glabrous (upper surface minutely papillate). Achenes borne in erect heads, glabrous.

Similar taxa

None

Flowering

November - January

Flower colours

Brown, Red/Pink

Fruiting

December - May

Life cycle

Hooked achenes are dispersed by attaching to fur, feathers and clothing (Thorsen et al., 2009).

Propagation technique

Difficult. Should not be removed from the wild.

Threats

Anemonastrum tenuicaule is a biologically sparse species. In the northern part of its range it is extremely uncommon. However from about North Otago south it is more common, and in places it is can be locally abundant. Within its range it is mostly secure, occurring on public conservation land. It is possible that some lowland populations are threatened by competition from weeds.

Etymology

anemonastrum: The meaning of the genus was not clearly specified by the naming author Josef Holub 1930-1999 (Holub 1973). The root is derived from ‘Anemone” - from the Greek ánemos ‘wind’. However, ‘astrum’ has multiple meanings. In one case it could mean ‘a star’ (Latin ‘astrum’ (from Ancient Greek ‘astron’, a more poetic variant of ‘aster’)) hence ‘star anemone’. In another meaning ‘astrum’ could refer to the close resemblance of the genus to Anemone or that it is a ‘little Anemone’. In this regard ‘astrum’ is a noun-suffix (genitive -astri) in the second declension, expressing an incomplete resemblance to, some likeness to, an inferiority, or even usage in a diminutive sense. Probably the second explanation is preferable, because Holub (1973: 158) commented “Therefore a new name, Anemonastrum is proposed here for the genus under consideration, which is very closely related from the etymological point of view to Anemone” Opinion from: Prof. Sergei L. Mosyakin

tenuicaule: Thin-stemmed

Attribution

Fact sheet prepared for NZPCN by P.J. de Lange 12 February 2004. Description adapted from Allan (1961) and Webb et al. (1988). See also Mosyakin & de Lange (2018).

References and further reading

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

Holub, J. 1973: New names in Phanerogamae 2. Folia Geobotanica & Phytotaxonomica (Praha)
8(2): 155–179

Mosyakin, S.L.; de Lange, P.J. 2018: Anemonastrum tenuicaule and A. antucense (Ranunculaceae), new combinations for a New Zealand endemic species and its South American relative. PhytoKeys 99: 107-124.

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): 285-309

Webb CJ, Sykes WR, Garnock-Jones PJ 1988. Flora of New Zealand. Vol. IV. Botany Division, DSIR, Christchurch.

NZPCN Fact Sheet citation

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

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