Aeonium undulatum, a succulent, evergreensubshrub, is one of the larger species of aeonium with the rosette often over a metre from the ground on a single stem. Other rosettes do not branch off this stem (normally) but grow from the bottom, unlike most aeoniums. The plant is monocarpic so the flowering stem will die when it flowers which is normally after about 5 years.
The specific epithetundulatum comes from the Latin unda, meaning "wave" and refers to the wavy leaves.Synonyms include Sempervivum undulatum and Sempervivum youngianum. The common name "saucer plant" is applied to this and other plants of a similar habit.