Need help identifying these

[LolaMyLove]

Good morning everyone, I was working on my new outdoor set up for my Russians and I found these plants growing through my neighbors fence. What if any are ok to keep? not sure what this is.
or this
this I think is ok but I can't remember the name of it, but my female goes nuts if she sees it. Tries to eat it any chance she gets (it grows all over my yard).
What are your thoughts?

 

[pfara]

First one is oxalis which is high in oxalates so it should not be fed. The second one might be a lily? Third I'm not sure about.

 

[Yvonne G]

The first one is oxalis. Very hard to get rid of because the roots have little bulbs on them. When you pull up the plant it looks like you've pulled it up, roots and all, but the little bulbs drop off and stay in the dirt, to sprout new plants.

The second one looks like nut grass. If so, it is not toxic. This plant also has little 'nuts' on the roots that makes it hard to get rid of.

The bottom picture is not a weed, but a type of succulent. It is probably edible.

 

[LolaMyLove]

I think the 3rd is Sedum Reflexum (a succulent) but not completely sure.
The 1st one is a bummer since it is coming up everywhere. Most of it seems to be on my neighbors side of the fence but I will see what I can do to dig it up.