Sclerolinon

About

Sclerolinon is a monotypic genus of flowering plants in the flax family (Linaceae) containing the single species Sclerolinon digynum, which is known by the common names northwestern yellowflax and yellow hard flax. It is native to the western United States, where it has been recorded in Washington, Idaho, Oregon, and as far south as central California. It grows in seasonally wet habitats, such as mountain meadows and vernal pools.

Summary from Wikipedia