In article , Kay Easton
writes
J.A. also states that the black berries of Woody Nightshade (Solanum
dulcamara) are poisonous,

But Solanum dulcamara doesn't have black berries! - it has red ones.

In pedantic fact, neither red nor black, but scarlet. To give the full
quote:- Fruits: A loose cluster of egg-shaped, scarlet, shiny,
translucent berries c.10mm (2/3 in.) long. And ....as with other
nightshades the most attractive berries are poisonous. Be warned!
--
Alan Gould