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Not sure about this one Chris.Was it in a garden?According to the RHS Index of Garden Plants(one of my bibles!) C.sericea is an outdated synonym for Cornus stolonifera the "American Dogwood." Another well known Cornus is Cornus alba ' Sibirica'which is grown for it's brilliant red stems. I'd be hard pressed to separate these out.They both have white fruits, and you are right in saying there are many named cultivars but I'm not sure this makes it an aggregate species which I think is confined to plants in the wild,all the cultivars are garden plants.
David J Trevan
Hi David, it was growing in a hedgerow but it might have been planted years ago I suppose, so I'm not sure if it is wild but it was growing in the wild so to speak. To be honest I was looking at all the shieldbugs on it and the plant was a bit of an after thought but a very attractive shrub all the same.
Chris Brooks - www.dragonfly-images.co.uk
My Flickr site - www.flickr.com/photos/ceb1298
Stace retains the name Cornus sericea in his third edn., and also includes Cornus alba in the flora. I don't attempt to distinguish there, instead recording both as Cornus sericea agg. (This is fairly common as wildish plants.)
The name Cornus sericea goes back to Linnaeus, so there's no obvious reason why the later Cornus stolonifera should be preferred. The USDA uses Cornus sericea.
An aggregate is an informal category covering a group of plants which are closely related and difficult to distinguish. Cornus sericea and Cornus alba qualify, as do, for example, Hedera helix and Hedera hibernica.
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