2

It has small, white flowers with 5 petals. berries flowers

3

That is Pokeweed, Phytolacca americana.

a large semi-succulent herbaceous perennial plant growing up to 10 feet (3 metres) in height. It is native to eastern North America, the Midwest, and the Gulf Coast, with more scattered populations in the far West.

Also see:

And:

This question has been asked a few times before.

So clearly we need to start pokeweedID.stackexchange.com, where the only correct answer to any question will be "Phytolacca"... – Oreotrephes Aug 22 at 11:10 (On Biology)

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