Zigadenus fremontii, originally uploaded by wind_dancer.
Latin name: Zigadenus fremontii; Pronunciation: zig-a-DEE-nus free-MONT-ee-eye; Common name: Star lily; Family: Liliaceae (Lily); Habitat: Rocky outcrops, dry grassy or wooded slopes below 3000′, coastal sage scrub and chaparral. Blooming period: March to May.
I have these above 3K ft, but they are not in bloom, yet. I took this one a couple years ago.