Plant: Yucca blossoms..........

Yucca, the genus belonging to Asparagaceae family is quite prevalent in US South West...
The spectacular blossoms of Chaparral yucca (Yucca whipplei) dotting the landscapes of Wildwood regional park.

In the chaparral of Angeles National first, in Los Angels county......

Some other species........

I have heard about their edible uses by the Native Indians.......

Blooming on the shore of Torrey Pines beach.......

At Laguna beach..

I have published an article on the uses of yucca...here is the link...
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4131605/