Alocasia maharani or Grey Dragon Alocasia has beautiful shield-shaped dark green foliage that can reach up to 12 inches in length. It is different from other Alocasia plants because it has a thin layer of velvet on the leaves' tops. This creates a dark, soft texture. Let the dark leaves of an Alocasia Maharani pop against a white bookshelf in your office for a striking home decor look.