{{short description|Species of plant}} {{Use dmy dates|date=July 2019}} {{Speciesbox |image = Acaena rorida 1265983.jpg |status = NC |status_system = NZTCS |genus = Acaena |species = rorida |authority = B.H.Macmill.<ref name=powo/><ref name=macmillan/> }}

'''''Acaena rorida''''' is an endemic species of mat-forming perennial plant known only from grassy uplands on the Mangaohane Plateau in the northwestern part of the Ruahine Range in the North Island of New Zealand.<ref name=":1" /><ref name=macmillan>{{cite journal|last1=Macmillan|first1=B.H.|title=Acaena rorida and Acaena tesca(Rosaceae) — two new species from New Zealand|journal=New Zealand Journal of Botany|volume=29|issue=2|year=1991|pages=131–138|issn=0028-825X|doi=10.1080/0028825X.1991.10416716}} [https://www.tandfonline.com/doi/abs/10.1080/0028825X.1991.10416716#aHR0cHM6Ly93d3cudGFuZGZvbmxpbmUuY29tL2RvaS9wZGYvMTAuMTA4MC8wMDI4ODI1WC4xOTkxLjEwNDE2NzE2P25lZWRBY2Nlc3M9dHJ1ZUBAQDA= pdf]</ref>

Within its range, this plant occurs in areas with moist, stable soils such as in hollows in tussocklands and the floors of ravines. It can be distinguished from its closest congeners by the purple or dull green (rather than bright green) foliage and the sessile fruits which are often hidden among the leaves rather than being borne above. Flowering occurs in December and January with fruit being produced in February.<ref name=macmillan/> The colour of its flower is white.<ref name=":1">{{Cite web |title=Acaena rorida |url=https://www.nzpcn.org.nz/flora/species/acaena-rorida/ |access-date=2026-05-20 |website=New Zealand Plant Conservation Network |language=en}}</ref>

==Conservation status== This species has the "Nationally Critical" conservation status under the New Zealand Threat Classification System.<ref>{{Cite journal|last=Lange|first=Peter J. de|last2=Rolfe|first2=Jeremy R.|last3=Barkla|first3=John W.|last4=Courtney|first4=Shannel P.|last5=Champion|first5=Paul D.|last6=Perrie|first6=Leon R.|last7=Beadel|first7=Sarah M.|last8=Ford|first8=Kerry A.|last9=Breitwieser|first9=Ilse|last10=Schönberger|first10=Ines|last11=Hindmarsh-Walls|first11=Rowan|date=2018-05-01|title=Conservation status of New Zealand indigenous vascular plants, 2017|url=https://www.doc.govt.nz/globalassets/documents/science-and-technical/nztcs22entire.pdf|journal=New Zealand Threat Classification Series|volume=22|pages=1–86}}</ref><ref name=":0">{{Cite web |title=Acaena rorida |url=https://www.nzpcn.org.nz/flora/species/acaena-rorida/ |access-date=2025-08-25 |website=New Zealand Plant Conservation Network |language=en}}</ref>

==References== {{Reflist|refs= <ref name=powo>{{Cite web|url=http://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:959121-1|title=Acaena rorida B.H.Macmill. {{!}} Plants of the World Online {{!}} Kew Science|website=Plants of the World Online|access-date=2019-12-09}}</ref> }}

==External links== *{{cite web|title=''Acaena rorida'' B.H.Macmill.|work=Atlas of Living Australia|url=https://bie.ala.org.au/species/NZOR-6-123740}} *{{commonscat inline}} {{Taxonbar|from=Q4671630}}

rorida Category:Flora of New Zealand Category:Plants described in 1991

{{Rosoideae-stub}} {{NewZealand-plant-stub}}