What are these weeds on my patio?

[allthesmallthings]

I wanna let my little guy forage but need to make sure they're safe for him! He's a Hermann tortoise. Hand in pics for size.

1. Potentially chickweed? But no flowers


2. Very small between paving slabs



3. Also very small!

Thank you in advance! Sorry if I haven't done this right - on my phone and not sure if pics are labelled correctly.

 

[DoubleD1996!]

1.) Is chickweed. 2.) Looks like black nightshade(poison) 3.) Saw thistle