Hymenoxys brandegeei is a species of flowering plant in the daisy family known by the common names Brandegee's four-nerve daisy, Brandegee's rubberweed or western bitterweed. It is native to the states of Arizona, Colorado, and New Mexico in the southwestern United States.[1] [2]
Hymenoxys brandegeei grows at elevations of 2800– in the mountains, often above timber line. It is a perennial herb up to 24cm (09inches) tall. One plant generally produces one flower head per stem, up to 10 per plant. Each head has 14–23ray flowers and 150–250 disc flowers.[3]
The oldest available name for this plant is Actinella grandiflora var. glabrata, coined in 1874.[4] In elevating the taxon to species status, Asa Gray opted to forgo the common but not mandatory custom of using the varietal epithet as a species epithet. He chose instead to call the species Actinella brandegei.[5]