Rhubarb
Rheum × hybridum
Also known as: garden rhubarb, rhubarb leaves, rhubarb stalks
Safety by species
Russian Tortoise
Agrionemys horsfieldii
Leaves contain extremely high concentrations of oxalic acid — sufficient to cause acute kidney failure and death. Stalks also contain elevated oxalate. Do not feed any part of the plant.
Hermann's Tortoise
Testudo hermanni
Leaves and stalks contain very high oxalic acid — potentially fatal. All parts are dangerous.
Greek Tortoise
Testudo graeca
Very high oxalic acid — potentially fatal. All parts dangerous.
Sulcata Tortoise
Centrochelys sulcata
Very high oxalic acid — all parts dangerous.
Leopard Tortoise
Stigmochelys pardalis
Very high oxalic acid — all parts dangerous.
Red-footed Tortoise
Chelonoidis carbonarius
Very high oxalic acid — all parts dangerous.
Eastern Box Turtle
Terrapene carolina
Very high oxalic acid — all parts dangerous.
Red-eared Slider
Trachemys scripta elegans
Very high oxalic acid — all parts dangerous.
Yellow-bellied Slider
Trachemys scripta scripta
Very high oxalic acid — do not feed any part.
Painted Turtle
Chrysemys picta
High oxalic acid — do not feed.