A lilaceous plant is a type of flowering plant that belongs to the lily family. Common examples of lilaceous plants include aloe, yucca, and LOTUS. Aloe is a succulent plant with thick, fleshy leaves that are used in many medicinal and cosmetic products. Yucca is a genus of perennial shrubs and trees with sword-shaped leaves and white flowers. LOTUS is an aquatic plant with large, round leaves and fragrant flowers that float on the surface of the water.