Help ID some lawn weeds

[stixvegas]

Hi,
I live in Houston and just became the parent to a Sulcata tort. I've created an outdoor enclosure and wanted to see if the following weeds are good for him or not.

The first are these clovers:

Next are these, which have small yellow flowers:

Last, is this weed, which I couldn't get a great photo of using my iPhone:

I'm hoping someone can easily tell me if their safe or not.

Thanks in advance!!
Scott

 

[Yvonne G]

Hi Scott:

The first one is oxalis. Its not good for them to consume large quantities of this, too much oxalates.

I've never seen the second one.

The last one is edible and I feed it all the time to my babies.

 

[stixvegas]

Thanks for the info EmySemys!