Geum × catlingii
{{Short description|Species of flowering plant}}
{{Speciesbox
|name = Catling's avens
|image = Geum_xcatlingii_fl.jpg
|genus = Geum
|species = × catlingii
|authority = J.-P. Bernard & R. Gauthier
}}
Geum × catlingii, or Catling's avens, is a plant in the rose family, Rosaceae. It is known from eastern Canada, where it arises from natural hybridization between the native G. canadense Jacq. and the introduced G. urbanum L.{{cite journal |first1=J.-P. |last1=Bernard |first2=R. |last2=Gauthier |title=Observations sur le Geum urbanum L. dans la région de Québec et description de deux hybrides |journal=Naturaliste Canadien |year=1986 |volume=113 |issue=4 |pages=317–324 |url=https://www.herbier.ulaval.ca/fileadmin/documents/Ludoviciana/LU26.pdf |archive-url=https://web.archive.org/web/20180224113828/https://www.herbier.ulaval.ca/fileadmin/documents/Ludoviciana/LU26.pdf |url-status=dead |archive-date=2018-02-24 }}{{cite web |last1=Brouillet |first1=L. |first2=F. |last2=Coursol |first3=S.J. |last3=Meades |first4=M. |last4=Favreau |first5=M. |last5=Anions |first6=P. |last6=Bélisle |first7=P. |last7=Desmet |year=2010 |title=VASCAN, the Database of Vascular Plants of Canada |url=http://data.canadensys.net/vascan/ |access-date=2018-01-12}} It is named after Paul M. Catling, the botanist who first observed the hybrid.
Description
Geum ×catlingii is a hybrid taxon, and as such exhibits variable morphology. However, several characters in combination help distinguish it from other Geum species:
- Hybrid vigor - hybrids tend to be larger than parents
- Petals are creamy-yellow - intermediate between dark yellow (G. urbanum) and white (G. canadense).
- Intermediate stem bract size
- Highly sterile ovaries
It has been noted to bloom throughout the summer, after other species have shed their petals.{{cite journal |first=C.J. |last=Rothfels |title=Significant 2004 Hamilton Study Area Plant Records from the Royal Botanical Gardens Herbarium (HAM) |journal=The Wood Duck |volume=58 |issue=9 |pages=219–223 |year=2005 |url=https://pdfs.semanticscholar.org/067a/3cec160632d3de7feb31a899b55f90b547e1.pdf }}{{Dead link|date=June 2024 |bot=InternetArchiveBot |fix-attempted=yes }}
References
{{Reflist}}
{{Taxonbar|from=Q17243239}}
{{DEFAULTSORT:Geum catlingii}}
Category:Flora of Northern America
Category:Plants described in 1986
{{rosoideae-stub}}