Sensu stricto The Lilieae are a monophyletic tribe of monocotyledon perennial, herbaceous mainly bulbous flowering plants in the lily family (Liliaceae).

The term has varied over the years but in modern classification constitutes either a broad circumscription (Lilieae sensu lato, s.l.)

with eight genera, placed in the subfamily Lilioideae, or narrower circumscription with four genera (Lilieae sensu stricto, s.s.), excluding Tulipa (which now includes Amana), Erythronium and Gagea (which now includes Lloydia) which are treated as a separate tribe, Tulipeae., and Lilium includes Nomocharis, reducing the number of genera in Lilieae to four, with about 260–300 species.

[1][2] The evolutionary and phylogenetic relationships between the genera currently included in Liliaceae are shown in this cladogram.

Tricyrtis Streptopus Prosartes Scoliopus Calochortus Clintonia Medeola Tulipa Amana Erythronium Gagea (Lloydia) Notholirion Cardiocrinum Lilium (Nomocharis) Fritillaria Lilieae s.s. are distributed in temperate Northern Hemisphere areas, with the main centre of diversity in the Qinghai–Tibet Plateau, where about 100 species may be found.