The variegated shape of this succulent presents streaks or even yellowish shades in the exact areas where there is lack of chlorophyll; such streaks will never be identical in different plants making each of them unique in its kind and for this reason strongly sought after by collectors around the world. In its normal form H. mutica is a perennial plant with slow growth that is shaped like a low rosette with a habit both solitary and tufted. Its triangular leaves at the tips are smooth dark green, fleshy and curved (which bend backwards) almost translucent that contribute to the process of photosynthesis with slightly serrated margins. The flowering appears on long stems producing small flowers with a tubular shape.