They like lots of different weeds. The ones that grow wild in my yard are cow thistle, dandelion, spiny lettuce, dwarf mallow, one I can't remember but the chickens and tortoises both like it. There was a discussion about it being good in salads last year, It has a green leaf and a red/purple stem. If you google the names, you can see images of the weeds and see if you get them. They also love hibiscus leaves and flowers, petunia leaves and flowers, allyssa (the stuff with the little purple and white flowers that smell like honey if you move them), optunia cactus (prickly pear family), and a tortoise mix I buy from carolina pet supply online. Hibiscus flowers are especially good for them because they are high in vitamin C. Oh, and grape leaves are a favorite with tortoises. Mine won't eat hay though. If I grind it up and put it on damp weeds they will eat it along with the weeds, but that's about it. I try to feed them from my yard most of the year because it is all more nutritious than spring mix. Sometimes I have to use it though. We only let weeds grow in a few parts of the yard, so it's not too messy. We rotate where we pick from. It's actually one of my favorite things, going around the yard picking stuff for the torts ... of course the chickens love all of the above too, and they always wait at the fence for handouts when they see me picking weeds.
