Nolina interrata is a rare species of flowering plant known by the common names
Dehesa nolina and
Dehesa beargrass. It is known from about ten occurrences in central San Diego County, California, and fewer than 100 individual plants on land across the border in Baja California. The plant was first described in 1946 when found at the type locality near El Cajon, California, and all the individuals known in California are located within a six-square-mile area...
(Wikipedia)