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  4. Euchiton paludosus

Euchiton paludosus

Mount Ruapehu.<br>Photographer: Jeremy R. Rolfe, Date taken: 09/02/2012, 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>
Euchiton paludosus.<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>
Showing one of the two colour morps, this being the more unusual green form.<br>Photographer: Nicholas J. D. Singers, 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>
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Synonyms

Gnaphalium paludosum Petrie, Euchiton paludosus (Petrie) Anderb. (nom. illegit.)

Family

Asteraceae

Authority

Euchiton paludosus (Petrie) Holub

Flora category

Vascular – Native

Endemic taxon

Yes

Endemic genus

No

Endemic family

No

Structural class

Herbs - Dicotyledonous 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.

EUCPAL

Chromosome number

2n = 28

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.

2018 | Data Deficient

Previous conservation statuses

2017 | Data Deficient | Qualifiers: Sp

2012 | At Risk – Naturally Uncommon | Qualifiers: DP, Sp

2009 | At Risk – Naturally Uncommon | Qualifiers: DP

2004 | Sparse

Distribution

Endemic. North, South and Stewart Islands. In the North Island scarce from about the Kaingaroa Plain south. In the South Island local from Nelson to Southland. Local on Stewart Island

Habitat

Montane to subalpine mainly in bogs, or occasionally along stream and tarn margins, seepages and flushes within forest, shrubland, tussock grassland or herbfield.

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).

FACW: Facultative Wetland

Usually is a hydrophyte but occasionally found in uplands (non-wetlands).

Features

Stoloniferous perennial, forming diminutive, compact mats up to 80 mm diameter. Stems 1-2 ascending, simple 10-50 mm tall. Petioles rather short or absent. Leaves mainly basal; these 5-20 x 0.5-4 mm, elliptic to linear-elliptic or narrow-oblanceolate, obtuse to subacute, base often cuneate, attenuate; lower surface except mid-vein densely covered in white indumentum, upper surface usually glabrous and pleated, burnished bronze-green to dark green or purple green, sometimes sparsely tomentose, without pleats; cauline leaves scale-like, 1-3, ovate-triangular, amplexicaul, scarcely reducing toward apex. Capitula 1 mm diameter, solitary; subtending leaves absent; scape amongst leaves at flowering, filiform and exceeding leaves at fruiting. Involucral bracts elliptic-oblong, obtuse 3.8-4.5 mm, stereome green, tinged red-purple or maroon at apex; lamina pale brown, with a darker band at base; gap and margins tinged pale to deep red-purple. Achenes c.1 mm, covered with short antrorse hairs.

Similar taxa

Closely allied to Euchiton polylepis from which it differs by the usually pleated leaves, fewer hermaphroditic florests [1-3(-5) cf. (2-)4-7], fewer, longer bracts and longer achene hairs. Ecologically both species differ with Euchiton polylepis favouring mainly stream sides, damp hollows in grassland, and damp sites at the base of cliffs or on and around rocks, and E. paludosus bogs.

Flowering

November - December

Fruiting

December - February

Life cycle

Pappate cypselae are dispersed by wind and water (Thorsen et al., 2009).

Propagation technique

Easily grown in a partially submerged pot in a sunny or semi-shaded site.

Threats

A naturally uncommon, biologically sparse species that it very widely distributed but never common at any particular place. It may be threatened at some sites by weeds

Etymology

euchiton: From the Greek eu (good) and chiton (tunic or covering)

paludosus: Of the swamp

Where To Buy

Not commerically available.

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 11: 285-309

NZPCN Fact Sheet citation

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

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