Liliaceous plants are flowering plants that belong to the lily family. Common examples of liliaceous plants include aloe (4 letters), scilla (6 letters) and smilax (6 letters). Aloe is a succulent plant with thick, fleshy leaves and is often used in medicinal products. Scilla is a genus of bulbous perennial plants with star-shaped flowers. Smilax is a genus of woody, climbing plants with large, heart-shaped leaves.