After some trial and error, I think I have figured out which domestic and wild plants our Russian tortoises like to eat, and which they don't.
Plants they usually want:
Arugula
Lettuce
Endive
Dandelion
Turnip
Collard
Kale
Morning glory
Plants they usually don't want:
Mustard
Spinach
Chard
Clover
Creeping Charlie
Plantago
Plants they usually want:
Arugula
Lettuce
Endive
Dandelion
Turnip
Collard
Kale
Morning glory
Plants they usually don't want:
Mustard
Spinach
Chard
Clover
Creeping Charlie
Plantago