I think looking at that that it is a wolfberry, it has the same flowers, i never get the berrys though.

Does this plant have a habit of taking over others?

The pictures i have put up here show it growing in my privet hedge (i think its privet anyway) i also had it growing it my laurel and it has made a gap in the bush where its started to take over, similar story with my conifers?

I want to get rid of it without effecting the bushes it is in?