Source : WordNet®

living rock
     n 1: usually unbranched usually spineless cactus covered with
          warty tubercles and having magenta flowers and white or
          green fruit; resembles the related mescal; northeastern
          Mexico and southwestern United States [syn: {Ariocarpus
          fissuratus}]
     2: highly succulent stemless clump-forming plants with
        gray-green leaves similar in texture to lumps of granite;
        South Africa [syn: {living granite}, {stone mimicry plant}]