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  4. Pseudopanax colensoi var. ternatus

Pseudopanax colensoi var. ternatus

Leaf detail, Bluff, Southland.<br>Photographer: Mike Thorsen, Date taken: 12/12/2016, 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>
Sullivans Dam, Dunedin.<br>Photographer: Mike Thorsen, Date taken: 08/06/2013, 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>
Pseudopanax colensoi var. ternatus, Mt Cook.<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, Fiordland.<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>
Fruit. Gertrude Valley, Fiordland.<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>
Catlins, January.<br>Photographer: John Smith-Dodsworth, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by-nc/4.0'>CC BY-NC</a>.
Sullivans Dam, Dunedin.<br>Photographer: Mike Thorsen, Date taken: 08/06/2013, 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>
Swampy.<br>Photographer: Mike Thorsen, Date taken: 16/11/2013, 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>
Catlins, January.<br>Photographer: John Smith-Dodsworth, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by-nc/4.0'>CC BY-NC</a>.
Pseudopanax colensoi var. ternatus.<br>Photographer: John Barkla, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by/4.0'>CC BY</a>.
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Biostatus

Native – Endemic taxon

Category

Vascular

Structural class

Trees & Shrubs - Dicotyledons

Simplified description

Small much-branched tree with 3 fleshy leaflets arranged fanwise on a long petiole

Flower colours

Cream, Green

Detailed description

Us. dioecious. Small multi-branched tree to 8 m tall, branchlets fleshy brittle. Leaves alternate, leaflets 3, palmate, sessile or subsessile on very short petiolules. Petioles 5-20 cm long, sheathing branchlet at base and with small erect stipule. Petiolules absent or very short, of terminal leaflet to 0-3 mm long, shorter on lateral leaflets, pale green. Leaflets narrow-ovate to broadly elliptic-oblong, cuneately narrowed at base, coriaceous, coarsely serrate-dentate in upper 1/2 - 2/3, acute to obtuse; midrib obvious above and below, lateral veins obscure; darker shiny green above; teminal lamina 5-17 x 2-11 cm, lateral leaflets decreasing in size. Inflorescence a terminal umbel; c. 8 primary rays (branchlets); 10-12 secondary rays; umbellules with 5-10 flowers in each. Calyx truncate or obscurely 5-toothed; flowers c. 5 mm diam.; petals 5, cream or greenish, ovate to triangular, acute; ovary 2-loculed, each containing 1 ovules; style branches 2. Fruit fleshy, 4-6 mm diam., style branches retained on an apical disc, dark purple when ripe. Seeds 2 per fruit, obviously wrinkled, 3.5-4.5 mm long.

Similar taxa

Often confused with Pseudopanax colensoi var. colensoi, which usually has 5 leaflets. Psudopanax discolor also has three leaflets but these are much smaller and thinner. The other varieties of Pseudopanax colensoi are distinguished their number of leaflets and distribution. The presence of a range of forms of probable hybrid arrangement at some sites can make identification difficult at times.

Distribution

South Island. Apparently absent from Banks Peninsula

Habitat

50m to 1000 m a.s.l. Cool moist forest and shrubland in damper regions

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 | Not Threatened

Jump to previous conservation statuses

Threats

Not Threatened, but leaflets often eaten by possums (Trichosurus vulpecula)

Detailed taxonomy

Family

Araliaceae

Authority

Pseudopanax colensoi var. ternatus Wardle

Synonyms

Neopanax colensoi (Hook.f.) Allan, Nothopanax colensoi (Hook.f.) Seem.

Taxonomic notes

For comments on the generic position of this taxon see under Pseudopanax colensoi (see also: Frodin, D.G.; Govaerts, R. 2003: World Checklist and Bibliography of Araliaceae, The Cromwell Press, European Union.)

Endemic taxon

Yes

Endemic genus

Yes

Ecology

Flowering

October-March

Fruiting

October-March

Other information

Etymology

pseudopanax: False cure

colensoi: Named after William Colenso (7 November 1811 - 10 February 1899) who was a Cornish Christian missionary to New Zealand, and also a printer, botanist, explorer and politician.

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.

PSECVT

Chromosome number

2n = 48

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 | Not Threatened

2012 | Not Threatened

2009 | Not Threatened

2004 | Not Threatened

Jump to current conservation status

Regional conservation statuses

The regional threat classification system leverages off the national assessments in the NZTCS, providing information relevant for the regional context. Otago conservation status information is sourced from the “Regional conservation status of indigenous vascular plants in Otago” Jarvie S et al. (2024) report.

Otago: 2024 | Regionally Not Threatened

Referencing and citations

References and further reading

Wardle, P. 1968. The taxonomy and distribution of the stipulate species of Pseudopanax in New Zealand. NZ J. Botany 6: 226-236

Allan, H.H. 1961. Flora of NZ, Vol. I. Government Printer, Wellington

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

Attribution

Description adapted from Wardle (1968), Allan (1961) and Webb and Simpson (2001).

Some of this factsheet information is derived from Flora of New Zealand Online and is used under a Creative Commons Attribution 3.0 New Zealand licence.

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