Allium lacunosum is a California species that occurs widely south of San Francisco. It has small white to pale pink flowers in close umbels. There are four varieties which are distinguished by measurement of plant parts and range. The photos below are of plants in cultivation. Photo 1 taken by Mary Sue Ittner is of an unknown variety. Photos 2-3 were taken by Nhu Nguyen of variety lacunosum.
Allium lacunosum var. lacunosum has leaves that are longer than the stem (10-20 cm). The flowers measure 7-9 mm. This variety is found along the coast and in the coast ranges. The photos below were taken by Nhu Nguyen from Ring Mountain where they occur on serpentine outcrops by the thousands. The petals fade to a rusty brown and are persistent as the seeds mature.