It is endemic to California, where most known occurrences have been recorded in Lake and Mendocino Counties.
It is generally found in chaparral ecosystems on serpentine soils.
Its narrow, lance-shaped leaves are lined with rows of teeth with large knobby glandular points.
The flower has small sepals speckled with glandular hairs and five thin yellow petals.
The stamens protrude from the face of the flower and hold large yellow anthers.