Identify another shrub/tree

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Can anyone identify this shrub/garden bush/tree ?

I've attached a photo (taken with a cameraphone). The most distinct features are the cluster of small white flowers which appeared since June (if I recall correctly) and the serrated leaves.
I'm assuming its a non-native shrub/bush introduced into Ireland.
I've seen examples of it in other places with slightly lighter coloured leaves.

I've scoured garden plant books but this one seems to elude me.

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Sonnenblumen

It looks to me to be Olearia Macrodonta (New Zealand Holly).

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Sonnenblumen wrote:

It looks to me to be Olearia Macrodonta (New Zealand Holly).

Cool Sonnen !!

You are bang on !
http://www.habitas.org.uk/gardenflora/images/olearia_macrodonta.jpg

If you are online tomorrow I'm going to take a photo (weather permitting)
of some leaves on tall screening trees which I spotted near a garage
stop near Knock airport which may be possibly a Black poplar or downy
birch. Tall elegant trees. I'll take the camera out tomorrow.

You deserve a virtual beer for IDing that NZ holly bush !

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Here is a photo of the foliage on the other tree I am trying to ID
(I've a separate photo which I can upload of the actual profile of the
trees themselves) Apologies for the poor quality of image / poorly
exposed with a cameraphone.

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Sonnenblumen

Seems to be a poplar alright, difficult to tell whether it's a Black Poplar (populus Nigra) or the Italian Black Poplar hybrid?

These trees shouldn't be planted within an asses roar of any buildings!:D

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Hi Sonnen,

I've attached a photo taken of the trees in the distance - may help in identifying the exact type....
My shortlist was black/italian poplar *or* a downy birch tree.

(downy birch birch
or
Italian poplarpoplar