The unknown berry

Here you've got another rubbish picture taken only to keep on with the 365 day's project.

This kind of vegetable grows in my garden, but it's wild and it hasn't got any flavour, so you shouldn't try it in case it's poisonous.
At first it came from an edible plant, but can you tell me what kind of plant?

10 points for the right answer hahaha

Bye bye