1. Shepherd's purse - my animals don't eat it
2. might be calif. poppy, but I'm not sure
3. fiddle neck - parts are toxic
4. mustard - my animals don't eat it
WTF are you in California; it's a big state? Why the mystery?
Don't feed Cal. poppies to most tortoises. Maybe desert tortoises. Most poppies should be avoided.
Whatever mustard you have, it's not very palatable; just buy some seeds of better greens, and rip the weeds out.
There are far too many people posting threads with "is this edible?"- type titles. Rip the crap out, and plant some good edible things there. This gets so tiresome.