Crown of thorns (Euphorbia milii) is A popular, spiny succulent from Madagascar, known for its colorful flowers and common use as a houseplant or ornamental in warm climates, named for the legend that its stems formed Jesus's crown of thorns. It thrives in full sun and well-draining soil, requires infrequent watering, and its sap is mildly toxic and can cause skin irritation, so gloves should be worn when handling.
