Peace Lily Botanically known as Spathiphyllum macrophyllum from Araceae family. Common name are Peace lily, Spathiphyllum, Cobra plant etc. This is evergreen herbaceous perennial plants with large leaves 12–65 cm long and 3–25 cm broad. The flowers are produced in a spadix, surrounded by a 10–30 cm long, white, yellowish, or greenish spathe. This easy-care plant has beautiful glossy green leaves and the unusual ability to blossom in medium light.