The genus Lilium are herbaceous flowering plants growing from bulbs. They comprise a genus of about 110 species in the lily family (Liliaceae).
Most species are deciduous, but a few species (Lilium candidum, Lilium catesbaei) bear a basal rosette of leaves during dormancy.
Many species are widely grown in the garden in temperate and sub-tropical regions. Sometimes they may also be grown as potted plants. A large number of ornamental hybrids have been developed. Asiatic and Oriental lilies are the two most popular types of lilies for northern gardens.
Many varieties of lily are extremely toxic to cats.