Please help me ID this tree/shrub!

[Brachystegia]

Originally Posted by honeybee

A cultivated rose tends to go wild if left and reverts to a dog rose

I apologise for being picky but:

A cultivated rose will only seem to revert to a dog rose if it were grafted onto a dog rose rootstock. Rosa canina ‘Inermis’ is used as a rootstock for some cultivated roses. If this rootstock produces suckers they will grow as dog roses, gradually reducing the vigour of the cultivated scion until it succumbs.
If a different rootstock were used, (R. multiflora is also a common choice), the specimen will ‘revert’ to this species.
A cultivated rose grown from a cutting on its own roots can’t revert to anything. To do so would involve changing its genetic structure which is not possible.
Roses have been cultivated for centuries and whilst the origins of some older forms are lost it seems that the dog rose was not a major participant in the parentage of garden roses.

[honeybee]

Originally Posted by Brachystegia

I apologise for being picky but:

A cultivated rose will only seem to revert to a dog rose if it were grafted onto a dog rose rootstock. Rosa canina ‘Inermis’ is used as a rootstock for some cultivated roses. If this rootstock produces suckers they will grow as dog roses, gradually reducing the vigour of the cultivated scion until it succumbs.
If a different rootstock were used, (R. multiflora is also a common choice), the specimen will ‘revert’ to this species.
A cultivated rose grown from a cutting on its own roots can’t revert to anything. To do so would involve changing its genetic structure which is not possible.
Roses have been cultivated for centuries and whilst the origins of some older forms are lost it seems that the dog rose was not a major participant in the parentage of garden roses.

That's ok, I'll let you off as you know more about it than me!

[BeowulfIII]

Ok, thanks for all opinions. Aeshna5, the flowers look very similar to that in the Wikipedia picture so I suspect you may have been right the first time. Thank you v much for the reference. I am looking forward to spring to get a 100% accurate identification.