Angels Trumpet

Because of the thin, twisted nature of the 'trunk' I am not sure if this a tree or a bush or even climber that has been trained over the years. It was around 6 feet in height and the span of the canopy was around 5 feet. The yellow trumpet type flowers were around half a foot in length, they reminded me of marrow or courgette flowers, but on a much larger scale. They were all hanging underneath the canopy.