Liliidae

thumb|Lilium martagon Liliidae is a botanical name at the rank of subclass. Circumscription of the subclass will vary with the taxonomic system being used (there are many such systems); the only requirement being that it includes the family Liliaceae.

==Liliidae in Takhtajan system== The Takhtajan system treats this as one of six subclasses within class Liliopsida (= monocotyledons). This subclass consists of: subclass Liliidae superorder Lilianae order Melanthiales order Colchicales order Trilliales order Liliales order Alstroemeriales order Iridales order Tecophilaeales order Burmanniales order Hypoxidales order Orchidales order Amaryllidales order Asparagales order Xanthorrhoeales order Hanguanales superorder Dioscoreanae order Stemonales order Smilacales order Dioscoreales order Taccales