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  4. Microtis parviflora

Microtis parviflora

Close up of flowers at various angles. Tokaanu, Central North Island.<br>Photographer: Matt Ward, Date taken: 28/11/2021, 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>
Inflorescence. Puketi Forest, Northland.<br>Photographer: Matt Ward, Date taken: 08/10/2018, 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>
Flowers, with an ant present for scale. Tokaanu, Central North Island.<br>Photographer: Matt Ward, Date taken: 28/12/2022, 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>
Bream Tail Reserve, 3/11/95.<br>Photographer: Eric Scanlen, Licence: <a target='_blank' href='https://creativecommons.org/licenses/by-nc/4.0'>CC BY-NC</a>.
Habitat. Puketi Forest , Northland.<br>Photographer: Matt Ward, Date taken: 08/10/2018, 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 names

onion-leaved orchid

Biostatus

Native

Category

Vascular

Structural class

Orchids

Flower colours

Green, Yellow

Detailed description

Terrestrial, glabrous, colony forming, fleshy, tuberous bright green to yellow-green perennial herb. Plants at flowering 100–400–(700) mm tall. Tubers globose to ovoid. Stem erect, terete. Leaf solitary, usually overtopping inflorescence, bright green to yellow-green, closely sheathing stem for much of length, linear-terete, hollow, 400 × 8 mm long. Inflorescence a raceme up to 300 × 10 mm. Flowers 10–80, up to 3 mm diameter, shortly-stalked and closely spaced, more or less overlapping. Perianth green to yellow-green, segments up to 2.2 mm long, widely spreading, thick and fleshy. Dorsal sepal 1.5–2.0 mm long, ovate, erect or projecting forwards, cucullate, concave, column-embracing, acute, apex shortly recurved, smaller than ovary at flowering; lateral sepals shorter and narrower, subacute, strongly deflexed, usually curled under. Petals shorter still, narrowly obtuse, erect, usually partially hidden under dorsal sepal. Labellum sessile, tongue-like, up to 2 mm long, green or yellow-green, more or less triangular-cordate, decurved but more less slightly projecting forwards, broader at base narrowing to an obtuse apex terminated by a down-turned apiculus; margin entire to sinuate (with marginal cells occasionally, slightly enlarged), smooth; anterior callus usually present, somewhat variable in size; basal calli prominent, dark green, ovate, paired and parallel, surrounding a distinct small pouched bulge on the under side of the labellum. Column short, obtuse, base of column wider than stigma, otherwise narrowing behind stigma, wings membranous throughout. Anther terminal, erect, situated above stigma, hemispherical, pollinia spheroidal, pollen granular. Stigma broadly ovate; rostellum ovate. Capsules broadly ovoid, ovoid-ellipsoid, brown when ripe.

Similar taxa

Easily distinguished from M. unifolia (G.Forst.) Reichb.f. and M. oligantha L.B.Moore by the more or less triangular labellum, which narrows abruptly to a down-turned apiculate tip, has a pouched base and an almost entire or smooth margin.

Distribution

Indigenous. New Zealand: Kermadec Islands, Manawatāwhi / Three Kings Islands, North Island (scarce south of Waikato and Bay of Plenty), South Island (Marlborough Sounds, North-west Nelson and the northern West Coast. Probably also in Australia.

Habitat

Coastal to lowland. Favouring open clay pans, sand dune hollows, and other areas of exposed soil with little overhead vegetation. Common in gumland scrub, on the margins of peat bogs, in seral forest and within geothermal fields.

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 | At Risk – Declining | Qualifiers: DPR, DPS, DPT, SO?

Jump to previous conservation statuses

Detailed taxonomy

Family

Orchidaceae

Authority

Microtis parviflora R.Br.

Synonyms

None

Taxonomic notes

New Zealand plants refered to M. parviflora are possibly distinct and may warrant separate taxonomic recognition. It is not clear if they are endemic, and at this stage NZPCN has assumed that they are not.

Endemic taxon

No

Endemic genus

No

Endemic family

No

Ecology

Flowering

September–March

Fruiting

December–May

Propagation technique

Easily grown in a sunny position. Should not be removed from the wild. Often invades urban lawns inm palces adjacent to gum land scrub (such as in western Auckland).

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). If you have suggestions for the Wetland Indicator Status Rating, please contact: [Enable JavaScript to view protected content]

FAC: Facultative

Commonly occurs as either a hydrophyte or non-hydrophyte (non-wetlands).

Other information

Etymology

microtis: Tiny eared

parviflora: From the Latin parvus ‘small, puny’ and flores ‘flowers’, meaning small-flowered.

Manaaki Whenua Online Interactive Key

Key to native orchids of New Zealand

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.

MICPAR

Chromosome number

2n = 44

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 | Qualifiers: SO

2012 | Not Threatened

2009 | Not Threatened

2004 | Not Threatened

Jump to current conservation status

Referencing and citations

References and further reading

Moore LB, Edgar E. 1970. Flora of New Zealand, Volume II. Indigenous Tracheophyta: Monocotyledones except Gramineae. Government Printer, Wellington, NZ. 354 p.

Attribution

Fact Sheet prepared for NZPCN by P.J. de Lange 14 April 2007. Description adapted from Moore and Edgar (1970).

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.

NZPCN Fact Sheet citation

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

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