In the coastal regions of La Palma and on treeless slopes elsewhere on the island, the peculiar Canarian spurge-grounds flourish. These Canarian spruges look like small cactus-like trees with many branches and soft leaves. La Palma is home to a wide variety of Euphorbiaceae plants, which are so called because of the milk-like, often poisonous liquid they contain. Vacationers with children, especially toddlers, should exercise a certain amount of caution and prevent these leaves from being picked or getting the juice in mouths or eyes.
They need little moisture and store it in their leaves and stems. The candelabra wolf's milk, or also column euphorbia, grows up to two meters high on La Palma, which one can observe particularly well from Garafía.