This wonderful succulent has a very particular fan-shaped crest because, this crested, will never be identical in separate specimens, make each one unique. In the normal form E. aggregata is a succulent shrub that does not reach great dimensions, but tends rather to form a thick cushion of many heads, characteristic which gives it the name of the species "aggregate", that is grouped. Its stems are made up of widely triangular ribs on the tip more flattened at the base, where the plant tends to lignify. It has spikes distributed in an uneven way along the edges, sometimes accompanied by deciduous leaves, small and lanceolate, of a typical green or violet color, which generate on the whole a set of really unique and lively shades!