Echium creticum, the Cretan viper's bugloss, (syn. Echium calycinum Viv., Echium rubrum Moench, Echium sericeum Vahl, Echium violaceum L.) is a species of flowering plant in the family Boraginaceae. It is native to the western Mediterranean Basin. It is also used as an ornamental plant.
Viper's bugloss is a toxic plant of medium severity. All parts of the plant are poisonous when ingested, and can cause symptoms of varying harm, such as pain of the lips, tongue, and throat, vomiting, stomach pain and diarrhea, and liver damage.