Euphorbia milii [Crown-of-thorns or Christ Plant; Mahkota Duri /Pakis Giwang in Indonesian] is a woody, succulent species of Euphorbia native to Madagascar. It is suspected that the species was introduced to the Middle East in ancient times, and legend associates it with the crown of thorns worn by Jesus.
It is a succulent climbing shrub with densely spiny stems; the straight, slender spines up to 3 cm long, which help scramble over other plants. The leaves are found mainly on new growth, and are up to 3.5 cm long and 1.5 cm broad.
The flowers are small, subtended by a pair of conspicuous petal-like bracts, variably red, pink or white, up to 12 mm broad. The sap is moderately poisonous.