Crocanthemum scoparium is a species of rockrose which is endemic to California.Jepson eFlora: Crocanthemum scoparium − (Nutt.) Millsp. . accessed 11.22.2014 Its common names include peak rockrose and peak rushrose. One variety is known as Bisbee Peak rushrose.
It is found in dry, sandy areas in hills and low mountains.
Description Crocanthemum scoparium is a small perennial shrub bearing long, smooth stems and small flowers each with five bright yellow petals.
References
External links Jepson eFlora: Crocanthemum scoparium Jepson Manual Treatment of Helianthemum scoparium Helianthemum scoparium — Photo gallery