Tiger Lily, a bright colored perennial lily native to Asia. It is a common wildflower in the eastern United States. Tiger lilies, of which there are many varieties, are also cultivated in flower gardens. The plant grows four to six feet (1.2 to 1.8 m) in height. It has numerous lance-shaped leaves and long, reddish-orange, curved petals that are covered with purplish-black spots. The tiger lily is Lilium Tigrinum of the lily family, Liliaceae.
Source: New standard encyclopedia