Are herbaceous flowering plants growing from bulbs. Most species are native to the temperate northern hemisphere. They comprise a genus of about 110 species in the lily family (Liliaceae).

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.

The range of lilies in the Old World extends across much of Europe, across most of Asia to Japan, south to the Nilgiri mountains in India, and to the Philippines. In the New World they extend from southern Canada through much of the United States.

Lilies are leafy stemmed herbs. The large flowers have six tepals, are often fragrant, and come in a range of colours ranging through whites, yellows, oranges, pinks, reds and purples. Markings include spots, brush strokes and picotees. The plants are summer flowering.

from: Wikipedia