[Mariposa Lilys: The Genus Calochortus in the Mountains and Deserts of the American Southwest]

What may be winding mariposa lily (with slightly winding stem) as seen along the Hukaby Trail at the eastern outskirts of Sedona, Arizona........March 21, 2015. If not that species, then it would most likely be Calochortus ambiguus which is also found in the area.