I have checked the tortoise table and do not find many of the Ohio plants/trees listed, like maple, redbud and plants like creeping charlie to mention a few. Is there another reference for plants/trees?
Sometimes you need to know the Latin name to look a plant up (use Google to find the Latin name) because that never changes even though the same plant is known by different common names in different countries.
And sometimes you will simply have to ask for the opinion of others in your country using our plant ID forum.
Redbud isn’t on TTT, you need to ask.
Tom’s list of safe plants and weeds is pretty comprehensive. He lives in California
Mulberry leaves
Grape vine leaves
Hibiscus leaves
African hibiscus leaves
Blue hibiscus leaves
Rose of Sharon leaves
Rose leaves
Geraniums
Gazanias
Lavatera
Pansies
Petunias
Hostas
Honeysuckle
Cape honeysuckle
Leaves and blooms from any squash plant, like pumpkin, cucumber, summer squash, etc...
Young spineless opuntia cactus pads