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  4. Pterophylla racemosa

Pterophylla racemosa

Flowering, Haast Pass, West Coast.<br>Photographer: Jesse Bythell, Date taken: 29/11/2015, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by-nc/4.0'>CC BY-NC</a>.
Progress Valley, Catlins (leaf detail).<br>Photographer: Jesse Bythell, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by-nc/4.0'>CC BY-NC</a>.
Stokes Valley, Lower Hutt.<br>Photographer: Jeremy R. Rolfe, Date taken: 10/08/2002, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by/4.0'>CC BY</a>.
Stokes Valley, Lower Hutt.<br>Photographer: Jeremy R. Rolfe, Date taken: 14/11/2003, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by/4.0'>CC BY</a>.
Kamahi.<br>Photographer: Wayne Bennett, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by-nc/4.0'>CC BY-NC</a>.
Kamahi.<br>Photographer: Wayne Bennett, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by-nc/4.0'>CC BY-NC</a>.
Kamahi.<br>Photographer: Wayne Bennett, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by-nc/4.0'>CC BY-NC</a>.
Kamahi.<br>Photographer: Wayne Bennett, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by-nc/4.0'>CC BY-NC</a>.
Kamahi.<br>Photographer: Wayne Bennett, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by-nc/4.0'>CC BY-NC</a>.
Kamahi.<br>Photographer: Alastair Robertson, Licence: All rights reserved.
Weinmannia racemosa.<br>Photographer: John Smith-Dodsworth, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by-nc/4.0'>CC BY-NC</a>.
Weinmannia racemosa.<br>Photographer: John Smith-Dodsworth, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by-nc/4.0'>CC BY-NC</a>.
Stokes Valley, Lower Hutt.<br>Photographer: Jeremy R. Rolfe, Date taken: 08/07/2006, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by/4.0'>CC BY</a>.
Remutaka Rail Trail.<br>Photographer: Jeremy R. Rolfe, Date taken: 02/12/2006, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by/4.0'>CC BY</a>.
Mt Pirongia.<br>Photographer: Gillian M. Crowcroft, Licence: All rights reserved.
Fruit. Stokes Valley, Lower Hutt.<br>Photographer: Jeremy R. Rolfe, Date taken: 15/04/2011, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by/4.0'>CC BY</a>.
Progress Valley, Catlins (leaf detail).<br>Photographer: Jesse Bythell, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by-nc/4.0'>CC BY-NC</a>.
Tararua Range.<br>Photographer: Jeremy R. Rolfe, Date taken: 23/02/2008, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by/4.0'>CC BY</a>.
Tararua Forest Park.<br>Photographer: Jeremy R. Rolfe, Date taken: 23/12/2007, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by/4.0'>CC BY</a>.
Flowering trees. Stokes Valley, Lower Hutt.<br>Photographer: Jeremy R. Rolfe, Date taken: 23/11/2016, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by/4.0'>CC BY</a>.
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Common name

kāmahi, tawheo, tawhero, tawherowhero

Synonyms

Weinmannia racemosa L.f.

Family

Cunoniaceae

Authority

Pterophylla racemosa (L.f.) Pillon et H.C.Hopkins

Flora category

Vascular – Native

Endemic taxon

Yes

Endemic genus

No

Endemic family

No

Structural class

Trees & Shrubs - Dicotyledons

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.

WEIRAC

Chromosome number

2n = 30

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 | Not Threatened

Previous conservation statuses

2009 | Not Threatened

2004 | Not Threatened

Brief description

Tree to small shrub, young stems bearing deciduous stipules, leaves variable but as adults most simple, with deeply toothed margins, flowers white or pink, clustered in spike-like racemes

Distribution

Endemic. North, South, Stewart Island. The exact northern limits of Pterophylla racemosa are uncertain but probably lie somewhere along the Manukau Harbour and Hunua Ranges across the Kamai Range. North of here the distinction between P. racemosa and P. sylvicola is often confused. This needs further study.

Habitat

Coastal to subalpine. A widespread and common tree of disturbed habitats in coastal and lowland to montane forest, often becoming locally dominant in higher altitude montane forest in the higher ranges of the North Island and western South Island.

Features

Tree up to 28 m tall often forming a narrowly domed canopy (but this will vary according to local conditions). Trunk up to 1.2 m diameter. Branches numerous, erect to spreading, Foliage heterophyllous. with distinct seedling, juvenile and adult leaves (reversion shoots common). Stipules caducous, 3-6 mm long, lanceolate, finely pubescent, yellow-green to pinkish. Seedling and juvenile leaves membranous to subcoriaceous, 10-60 × 10-30 mm; lamina simple to 3-lobed or 3-foliolate, ovate-elliptic to elliptic or lanceolate, apices subacute to acute, margins serrate to incised-serrate; adult leaves coriaceous, on petioles up to 20 cmm long, lamina 30-100 × 20-40 mm lamina simple, elliptic, ovate-elliptic to broad-ovate, apices obtuse to subacute, margins rather coarsely, bluntly serrate. Inflorescences in racemose; racemes 60-1140 mm long, rachises and pedicels finely, pilose-pubescent; pedicels 2-4 mm long, clustered, ascending to spreading. Sepals 1.0-1.5 mm. long, ovate, persistent; petals 4(-5), 2-3 mm long, ovate-oblong, white, cream or pale pink; stamens 8-10, exserted, filaments up 10 mm long, white or pinkish white, anthers 0.2-0.3 mm diameter, cream; nectaries 8, red; ovary, narrowly ovoid 0.8 mm diameter, covered in appressed hairs, carpels 2, free almost to base. Styles 3-4 mm long, pale pink, persistent; stigma 0.2-0.4 mm, pink or pale pink, punctate. Fruit a pubescent, broadly cylindrical capsule 4.0-5.8 x 2.7-3.1 mm, initially greyish drying honey-brown or dark brown. Seeds numerous, 1.0-1.5 mm long, narrowly elliptic to elliptic-oblong, orange-brown, apices bearing dense hair tufts, otherwise glabrous.

Similar taxa

Fact Sheet Under Development

Flowering

July - January

Flower colours

White

Fruiting

October - May

Propagation technique

Easily grown from fresh seed. Can also be grown from semi-hardwood cuttings. This is an attractive tree tolerant of a wide range of conditions and soil types though it does best in high light, and in free-draining soil. The flowers are very attractive to a range of insects and birds

Etymology

racemosa: Raceme bearing

Attribution

Fact sheet prepared for NZPCN by P.J. de Lange (13 October 2012). Description prepared by P.J. de Lange.

References and further reading

McKenzie, R. 1960. The distributional overlap of Weinmannia sylvicola and Weinmannia racemosa. Auckland Botanical Society Journal, 17: 7-8

NZPCN Fact Sheet citation

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

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