Hi Kendra-
The first two pics look like blackberries to me.
-Glenn

The last one looks like black walnut, but a closeup of the compound leaves will help confirm an ID.

I agree that the top two look like blackberries. Quality of wild plants can be hit or miss, but even if you don't like them the birds will. Blackberries can get invasive, though.

Most mulberries in the US are Fruitless Mulberries people use as street trees. That is probably why your one tree has no fruit. The other two look yummy, though! And yes, the top ones look like blackberries to me too.

The bottom one might be elderberries???

Carla in Sac

1st plant Blackberry, 2nd Mulberry, and I would think the 3rd to be Sumac, not the poison type, but Staghorn Sumac (Rhus typhina) the fruiting heads would develop a reddish almost grain like head later if thats what it is.

Bottom one looks like a sumac to me.

Mulberry, Mulberry, Sumac. The Mulberries here start yellowish, go to red then are ripe when dark purple/black. It is definitely mulberry season here, deer love them, beware the deer.

strudeldog has got it right. Blackberry, mulberry and Sumac.

~Chills

Strudeldog has it right.

Some sumac is edible, while others are toxic. Better to check with someone locally before using.

Thank you all! I guess We'll keep it all. I'll try the blackberries and mulberries but will stay away forn the Sumac - I hope the deer/birds choose these instead of my garden!

The huge mulberry tree with no berries is a male. It is huge because it does not have to fruit. If you chop it down, and there is no other male nearby, there will be no mulberries in the female ones.