In article , Alan Gould
writes
In article , Nick Maclaren
writes

If anyone has DEFINITE and RELIABLE evidence that Solanum nigrum
has edible berries, I should be interested to hear.

John Akeroyd, writing in his Encyclopedia of Wild Flowers, says of Black
Nightshade - Solanum nigrum:

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.

as are the black berries of Deadly Nightshade
(Atropa belladonna), though they have a long history of medicinal use.

The moral is don't eat wild or cultivated red or black berries unless
their edibility has been ascertained.

--
Kay Easton

Edward's earthworm page:
http://www.scarboro.demon.co.uk/garden/