The dark forest green to charcoal-black leaves are heavily studded with glassy, shiny raised bumps (tubercles) and 4 to 5 shimmering, silvery-grey longitudinal lines along the window surfaces.
Under ideal light-stress or during the entry and exit of seasonal dormancy, the leaves undergo a spectacular transformation—shifting into vibrant shades of bronze-rose, pinkish-red, coppery-gold, or deep purple.
It forms a very slow-developing, mostly solitary rosette that reaches up to 8 cm (3.2 inches) in diameter. Because it rarely produces offsets naturally, established specimens are highly prized.
