Posted: 07/07/2013 at 11:16
I think you are muddling your nightshades. What you are describing is woody nightshade or bittersweet (Solanum dulcamara). The deadly variety (Atropa bella-donna) is not all that common and always grows on chalk. I have only seen it once, on chalk, many years ago, whereas woody nightshade is rampant and has bright red berries.
In days gone by ladies used to put drops of a preperation made from the plant (the berries, I suppose) in their eyes to dilate them, hence the name bella-donna. Not to be recommended.
Perhaps you could ask for a good flower book for Christmas