Common Starlily
The Star lily can easily be recognized by its star-shaped white flowers with elongate tubes that appear to grow directly from the center of a basal rosette of narrow, grass-like leaves.
The flowers seem to have six petals, but technically these are a set of three petals alternating with three sepals.
Star lily is the only species in the entire genus Leucocrinum and is restricted to prairies, sagebrush grasslands, deserts, and mountain meadows of western North America