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  4. Wahlenbergia violacea

Wahlenbergia violacea

Coromandel, February.<br>Photographer: John Smith-Dodsworth, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by-nc/4.0'>CC BY-NC</a>.
Remutaka Rail Trail.<br>Photographer: Jeremy R. Rolfe, Date taken: 04/03/2007, 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>
Rimutaka Rail Trail.<br>Photographer: Jeremy R. Rolfe, Date taken: 04/03/2007, 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>
Boulder Hill, eastern Hutt hills.<br>Photographer: Jeremy R. Rolfe, Date taken: 26/12/2005, 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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Common name

violet harebell

Synonyms

Wahlenbergia gracilis sensu Allan nom. inv., Wahlenbergia marginata sensu Tuyn nom. inv., Wahlenbergia marginata var. australis Hatch nom .nud.

Family

Campanulaceae

Authority

Wahlenbergia violacea J.A.Petterson

Flora category

Vascular – Native

Endemic taxon

No

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.

WAHVIO

Chromosome number

2n = 72

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

Distribution

Indigenous. New Zealand: North and South Islands. Also Norfolk Island.

Habitat

Rarely coastal, mostly inland and lowland in scrub or bracken-clothed hills, or thin pasture, usually on clay; rural roadsides, burnt or eroded or disturbed places, often invasive in gardens.

Features

Radicate perennial herb. Stems 100-500 mm tall, slender, erect or decumbent. Leaves oblanceolate to lanceolate to linear, shallowly denticulate to subentire, dark green, the lowermost 2-5 pairs opposite in seedlings and young shoots. Pedicels slender, 30-150 mm long. Flowers self-fertile, glabrous, 5-l8 mm diameter, 2-10 mm long, bright blue-violet, paler outside. Corolla shortly campanulate, bowl-shaped, often with tube distinctly angled at the sinus; tube 1.5 × 3.0 mm to 3 × 4 mm, ¼ to 1/3 length of corolla; corolla lobes ovate, acute, overlapping or touching in open flower, 3 × 2 mm to 7 × 4 mm. Style capitate, thickened, and blue at apex. Stigmas large, often white and fluffy. Calyx lobes glabrous 1.5 × 0.7 mm to 4 × 1 mm narrowly triangular, equal in length to corolla lobe Capsule glabrous obconic, with protruding apical valves. Bud at anther dehiscence tinted blue. Seeds 0.5 mm long.

Similar taxa

Distinguished from the other New Zealand radicate Wahlenbergia Roth. by the blue-violet flower colour, shortly campanulate corolla with bowl-shaped tube, and ovate acute corolla lobes, touching or overlapping in the open flower, giving the flower a compact appearance. Usually there are 2-6 pairs of opposite leaves in young shoots and seedlings

Flowering

November - April

Flower colours

Blue, Violet/Purple

Fruiting

December - April

Propagation technique

Easily grown from fresh seed and rooted pieces. Does best in a sunny situation in well drained soil. In suitable conditions it freely naturalises and can even become weedy.

Etymology

wahlenbergia: Named in honour of Wahlenberg, a Swedish botanist and author of A Botany of Lapland.

violacea: Violet coloured

Where To Buy

Not Commercially Available

Attribution

Fact Sheet Prepared by P.J. de Lange 12 June 2007. Description adapted from Petterson (1997).

References and further reading

Petterson, J.A. 1997: Revision of the genus Wahlenbergia (Campanulaceae) in New Zealand. New Zealand Journal of Botanv 35: 9-54.

NZPCN Fact Sheet citation

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

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