{{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.<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 in the family Brassicaceae. Native to the subantarctic islands of Australasia, it has become an invasive species in plant nurseries. The specific epithet refers to the structure of the inflorescence.<ref name=fao>Flora of Australia Online.</ref>
==Description== New Zealand bittercress was described by 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 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’s subantarctic Auckland and Campbell Islands, as well as to Australia’s Macquarie Island, where it occurs in alpine tundra and rocky coastal habitats. It has been accidentally introduced to other parts of the world, including North America and Europe, where it is a weed of nursery crops grown in polytunnels.<ref name=post>Post ''et al''. (2009).</ref>
[[File:Cardamine corymbosa wurzel.jpg|thumb|right|220px|''Cardamine corymbosa'' siliquae (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}}