Aeonium arboreum, the tree aeonium, tree houseleek, or Irish rose, is a succulent, subtropical subshrub in the flowering plant family Crassulaceae.
The plant is endemic to the Canary Islands.
Aeonium arboreum grows as a less branched subshrub and reaches stature heights of up to 2 meters. The more or less upright or ascending, smooth, not net-like patterned stem axes have a diameter of 1 to 3 centimeters.
Their leaves are in flattened rosettes with diameters of 10 to 25 centimeters at the end of the stem axes together. Young leaves are pressed tightly together.
It bears rosettes of leaves and large pyramidal panicles of bright yellow flowers in the spring.