Foxglove

Russian Tortoise

Agrionemys horsfieldii

Contains cardiac glycosides (digitalis glycosides) that cause heart arrhythmias, vomiting, and can be fatal in small doses. All parts of the plant are toxic.

Hermann's Tortoise

Testudo hermanni

Cardiac glycosides — potentially fatal in small doses. All plant parts dangerous.

Greek Tortoise

Testudo graeca

Cardiac glycosides — can be fatal in small doses.

Sulcata Tortoise

Centrochelys sulcata

Cardiac glycosides — can be fatal in small doses.

Leopard Tortoise

Stigmochelys pardalis

Cardiac glycosides — can be fatal.

Yellow-bellied Slider

Trachemys scripta scripta

[confidence: high] [source: ASPCA Animal Poison Control (cross-ref); exotic reptile toxicology review; cardiac glycoside toxicity literature] Foxglove (Digitalis purpurea) contains cardiac glycosides causing fatal arrhythmia; all parts toxic to reptiles including aquatic turtles; do not feed.

Red-footed Tortoise

Chelonoidis carbonarius

Cardiac glycosides — can be fatal.

Eastern Box Turtle

Terrapene carolina

Cardiac glycosides — can be fatal.

Painted Turtle

Chrysemys picta

[confidence: high] [source: ASPCA Animal Poison Control (cross-ref); exotic reptile toxicology veterinarian review; cardiac glycoside toxicity literature] Foxglove (Digitalis purpurea) contains cardiac glycosides (digitoxin, digoxin) that cause fatal cardiac arrhythmia in reptiles; do not feed under any circumstances.

Red-eared Slider

Trachemys scripta elegans

[confidence: high] [source: ASPCA Animal Poison Control (cross-ref); exotic reptile toxicology review; cardiac glycoside toxicity literature] Foxglove (Digitalis purpurea) contains cardiac glycosides that cause fatal cardiac arrhythmia; all parts are highly toxic to reptiles including aquatic turtles.