Solanum dulcamara

Bittersweet, also known as Woody Nightshade, is a member of the potato family. The flowers of this poisonous woody climber are instantly recognisable and appear during June to September. Five deep purple petals that are swept back, display cone-shaped bright yellow anthers. The berries of this plant undergo an interesting colour transformation, beginning as a green berry, they change first to yellow, then to orange, and finally to red. The fact that not all the berries reach these color stages at the same time makes the plant even more colourful. Consequently, it is not uncommon to see bittersweet bearing berries of four different colours. These berries continue to ripen, long after the leaves have withered.