Bittersweet Nightshade - Solanum dulcamara

This vine has loose clusters of drooping, purple, star-shaped flowers with yellow centers. The flowers have a 5-lobed corolla and 5 stamens with yellow anthers forming a central cone. The leaves are long with 2 basal lobes. The fruit is a shiny, green, tomato-like berry that turns bright red.

The leaves and unripe fruit contain a poisonous alkaloid, solanine.

Spotted growing in a mass of vegetation on the side of a pond.