There is space between the segments, and the shape looks like a three-pointed or six pointed star. Photo by Brian Mahieu, used with permission. When viewed from the front of the bloom, the flower segments form a triangle. The sepals generally recurve. When viewed from side of bloom, flower form resembles a true lily.
Segments rise from throat in an upward pattern with little flare.
Photo by Brian Mahieu, used with permission. The flower must have distinctive petal or sepal shapes, or a combination of both.