Liliales

Liliales is an order of monocotyledonous flowering plants. This order of necessity includes the family Liliaceae, but both the family and the order have had a widely disputed history, with the circumscription varying greatly from one taxonomist to another. Well known plants from the order include Lilium (lily), tulip, the North American wildflower Trillium, and greenbrier.
The APG III system (2009) places this order in the clade monocots.