# Cardamine corymbosa

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{{Short description|Species of flowering plant in the cabbage family}}
{{Italic title}}
{{Speciesbox
|name = New Zealand bitter-cress
|image = Cardamine corymbosa Hersfeld.jpg
|image_caption = Flowers
|genus = Cardamine
|species = corymbosa
|authority = [Hook.f.](/source/Joseph_Dalton_Hooker)<ref name=Hooker>Hooker (1844).</ref>
|synonyms = *''Cardamine hirsuta'' var. ''corymbosa'' <small>(Hook.f.) Hook.f.</small>
}}

'''''Cardamine corymbosa''''', commonly known as the '''New Zealand bitter-cress''',<ref name=BSBI07>{{BSBI 2007 |access-date=2014-10-17 }}</ref> is a [flowering plant](/source/flowering_plant) in the [family](/source/Family_(taxonomy)) [Brassicaceae](/source/Brassicaceae).  Native to the subantarctic islands of [Australasia](/source/Australasia), it has become an [invasive species](/source/invasive_species) in [plant nurseries](/source/plant_nursery).  The [specific epithet](/source/specific_name_(botany)) refers to the structure of the [inflorescence](/source/inflorescence).<ref name=fao>Flora of Australia Online.</ref>

==Description==
New Zealand bittercress was described by [Joseph Dalton Hooker](/source/Joseph_Dalton_Hooker) as "a small and very distinct species of ''Cardamine'', wiry and fragile in every part’".<ref name=Hooker/>  The plant has a low and spreading growth habit with unbranched stems which creep along the ground.  It produces daughter plants through rooting at the nodes.  The basal, compound [leaves](/source/leaf) have three to five leaflets, with the terminal leaflet being up to twice as large as the lateral ones.<ref name=post/>

==Distribution and habitat==
The plant is native to [New Zealand](/source/New_Zealand)’s subantarctic [Auckland](/source/Auckland_Islands) and [Campbell Islands](/source/Campbell_Island%2C_New_Zealand), as well as to [Australia](/source/Australia)’s [Macquarie Island](/source/Macquarie_Island), where it occurs in [alpine tundra](/source/alpine_tundra) and rocky coastal habitats.  It has been accidentally introduced to other parts of the world, including [North America](/source/North_America) and [Europe](/source/Europe), where it is a [weed](/source/weed) of nursery crops grown in [polytunnel](/source/polytunnel)s.<ref name=post>Post ''et al''. (2009).</ref>

[[File:Cardamine corymbosa wurzel.jpg|thumb|right|220px|''Cardamine corymbosa'' [siliquae](/source/silique) (fruits)]]

==References==
{{Reflist}}

===Sources===
* {{cite journal |author= Hooker, J.D. |year= 1844|journal= Fl. Antarct.|volume=1 |pages=6 |title=The Botany of the Antarctic Voyage of H.M. Discovery Ships Erebus and Terror in the Years 1839–1843, under the command of Captain Sir James Clark Ross.}}
* {{cite journal |author1=Post, A.R. |author2=Neal, J.C. |author3=Krings, A. |author4=Sosinski, B.R. |author5=Xiang, Q. |year=2009 |title=New Zealand Bittercress (''Cardamine corymbosa''; Brassicaceae): New to the United States |journal=Weed Technology |volume=23 |issue=4 |pages=604–607 |url=http://www4.ncsu.edu/~jcneal/journal-manuscripts/Post%20et%20al%20%20New%20Zealand%20Bittercress%20WT2009.pdf |doi=10.1614/wt-09-017.1 |s2cid=86842896 |archive-date=2012-04-02 |access-date=2011-01-23 |archive-url=https://web.archive.org/web/20120402140642/http://www4.ncsu.edu/~jcneal/journal-manuscripts/Post%20et%20al%20%20New%20Zealand%20Bittercress%20WT2009.pdf |url-status=dead }}
* {{cite web |url=http://www.anbg.gov.au/abrs/online-resources/flora/stddisplay.xsql?pnid=6805 |title=''Cardamine corymbosa'' Hook.f. |access-date=2011-01-23 |work=Flora of Australia Online |publisher=Australian Biological Resources Study |year=1993 |archive-date=2012-10-25 |archive-url=https://web.archive.org/web/20121025053401/http://www.anbg.gov.au/abrs/online-resources/flora/stddisplay.xsql?pnid=6805 |url-status=dead }}

{{Taxonbar|from=Q1981563}}

corymbosa
Category:Flora of Macquarie Island
Category:Flora of New Zealand
Category:Flora of the Auckland Islands
Category:Flora of the Campbell Islands
Category:Plants described in 1844
Category:Taxa named by Joseph Dalton Hooker

{{Brassicaceae-stub}}

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Adapted from the Wikipedia article [Cardamine corymbosa](https://en.wikipedia.org/wiki/Cardamine_corymbosa) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Cardamine_corymbosa?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.