In its normal form it is a succulent plant with typically hard and pointed leaves. Its elongated stems, with time, go to tuft at the base. It has numerous oblong leaves, erect or curved, with a bluish-green color (from which it takes the name 'glauca', which means "cerulean"), but can take on purple shades in the resting phase of the plant. In the variegated form it has the typical lighter areas in the exact points where the chlorophyll is absent: these characteristics will never be the same from one plant to another, therefore each exemplar will be absolutely unique. In the flowering period it produces small whitish flowers at the apex of a long stem.