Lily — The genus Lilium are herbaceous flowering plants normally growing from bulbs, comprising a genus of about 110 species in the lily family, Liliaceae. They are important as large showy flowering garden plants, and in literature. Some of the bulbs have been consumed by people. The species in this genus are the true lilies, while other plants with lily in the common name are related to other groups of plants.
Lilies are native to the northern temperate regions. Their range in the Old World extends across much of Europe, the north Mediterranean, across most of Asia to Japan, south to the Nilgiri mountains in India, and south to the Philippines. In the New World they extend from southern Canada through much of the United States.
They are commonly adapted to either woodland habitats, often montane, or sometimes to grassland habitats. A few can survive in marshland and a single one is known to live as an epiphyte (L. arboricola). In general they prefer moderately acidic or lime-free soils.
Lilies are usually erect leafy stemmed herbs. The majority of species form naked or tunic-less scaly underground bulbs from which they overwinter. In some North American species the base of the bulb develops into rhizomes, on which numerous small bulbs are found. Some species develop stolons. A few species form bulbs at or near the soil surface.