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It is a succulent climbing shrub growing to 1.8m tall, with densely spiny stems, the straight, slender spines up to 3 cm long, which help it scramble over other plants. The leaves are found mainly on new growth, and are obovate, 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. Wat Phrik in the Phitsanulok District of Phitsanulok Province, Thailand claims to be the home of the world's tallest Christ plant.