Lilium is a genus of herbaceous flowering plants growing from bulbs, all with large prominent flowers. They comprise a genus of about 110species in the lily family Liliaceae. Most species are native to the temperate northern hemisphere, though the range extends into the northern subtropics.
Lilies form an important group of flowering garden plants, and are important culturally and in literature in much of the world. Some species are sometimes grown or harvested for the edible bulbs.
The species in this genus are the true lilies. Many other plants exist with "lily" in the common English name, some of which are quite unrelated to the true lilies.