Gonialoe Variegata (formerly Aloe Verde) is a small stemless succulent that produces 18 to 24 small dark green leaves. Glottiphyllum despressum (Tongue Plant), which is a small succulent, forms densely branched and low-clustering rosettes. Glottiphyllum canum is a compact succulent. It has smooth surfaces and blue-green- to yellow-green foliage. Gasteria batesiana "Barberton" is a slow-growing succulent that has unique dark green leaves, almost black, and rough surfaces.