Toxicoscordion fremontii

Toxicoscordion fremontii, known as the common star lily or Frémont's deathcamas (after John C. Frémont) or star zigadene, is an attractive wildflower found on grassy or woody slopes, or rocky outcrops, in many lower-lying regions of California, southwestern Oregon, and northern Baja California. Like other deathcamases, T. fremontii grows from a more or less spherical bulb, which in this species has a diameter of 20–35 mm. Its leaves can reach up to half a meter in length, but are typically half that length. They grow from the base of the plant. Flowers, which can be seen from March to June, grow in clusters. They have six petals (strictly, three petals and three very similar sepals), arranged symmetrically, giving rise to the name star-lily. Each flower is 1–4 cm across....read more on Wikipedia.