Hydrangea serratifolia

{{short description|Species of flowering plant in the family Hydrangeaceae}}

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|image = Hydrangea serratifolia (Inao Vásquez) 001.jpg

|genus = Hydrangea

|species = serratifolia

|authority = (Hook. & Arn.) F.Phil.

|synonyms =

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• Cornidia integerrima Hook. & Arn.
• Hydrangea integerrima (Hook. & Arn.) Engl.
• Hydrangea scandens Poepp.

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|synonyms_ref = {{cite web

|url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:791683-1 |title=Hydrangea serratifolia (Hook. & Arn.) F.Phil. |work=Plants of the World Online

|publisher=Royal Botanic Gardens, Kew |access-date=November 10, 2023}}

}}

Hydrangea serratifolia is a species of climbing flowering plant in the family Hydrangeaceae. It is native to Chile and Argentina.Hydrangeas: a gardener's guide By Toni Lawson-Hall, Brian Rothera. Page 34. Timber Press, 2005. {{ISBN|0881926698}}/{{ISBN|9780881926699}}

In its natural habitat, it is parasitized by the gall-forming fungus Austrobasidium pehueldeni.{{Cite journal |last=Palfner |first=Götz |date=2006-10-19 |title=Austrobasidium, a new gall-forming genus of Exobasidiaceae (Exobasidiales, Basidiomycota) on Hydrangea serratifolia from Chile |url=https://www.publish.csiro.au/sb/SB05026 |journal=Australian Systematic Botany |language=en |volume=19 |issue=5 |pages=431–436 |doi=10.1071/SB05026 |issn=1446-5701}}