Euphorbia milii, the crown of thorns, Christ plant, or Christ thorn, is a species of flowering plant in the spurge family Euphorbiaceae, native to Madagascar. The species name commemorates Baron Milius, once Governor of RĂ©union, who introduced the species to France in 1821.

Scientific name: Euphorbia milii
Family: Euphorbiaceae
Kingdom: Plantae
Order: Malpighiales
Lowest temperature: 35 degrees Fahrenheit