Mystery plant

Mystery plant

I have a weed in one of my containers that I can't identify. I don't want to kill it because I'm fascinated with the plant. At first I thought it was a pepper or tomato, but it doesn't seem to be one. The plant is about a foot and a half in height and has leaves that resemble a pepper or tomato leaf. It has round green fruits that look like a tomato, but is only about 1/4 inch round and turns to a dark purple (almost black). 1. The fruits above are about 1/4 inch round and turn a dark purple (almost black). 2. This is a similar plant I saw in an empty lot in San Francisco. Same fruits, but the leaves are slightly different from the one I have at home. Can anyone identify these plants? Thank you.
  • Tony

    that looks like nightshade a member of the tomato family but it is poisonous

  • Hoace

    I heard from friend that this plant helps in blood circulation. We both tried eating the dark fruit, taste ok.

Finished path

Finished path

Plant ID Needed Please!

Plant ID Needed Please!

Help! Who/What is the culprit?

Help! Who/What is the culprit?

UPDATED MY KAWAII ROOM~

UPDATED MY KAWAII ROOM~

Cactus ident?

Cactus ident?

putting stuff on the walls when you have a plate rail

putting stuff on the walls when you have a plate rail