One more picture

{{gwi:144542}}

Could it possibly be one of the Solanum family? It looks similar to Solanum Mammosum but the one I had flowered purple??Just a thought! Ross.

Solanum diphyllum perhaps?

Second looks like another species such as Solanum americanum

Some type of Solanum. Perhaps it is Solanum nigrum.

Here is a link that might be useful: {{gwi:2110215}}

Saltcedar I think they are all pictures of the same plant . This plant is not mine and I have never seen it personally . They belong to a member on another forum .

Solanum torvum then? It's highly variable and has been split into several sub-species.

Here is a link that might be useful: Solanum torvum

Turkey berry,

Here is a link that might be useful: Solanum torvum

Called here Naranjillo. Make a nice, refreshing juice.

It looks similar, but it is not Naranjilla (Solanum quitoense.)
Remy

Thanks guys for the info ! I have informed the person who owns the pictures.