Trifolium friscanum is a rare species of flowering plant in the legume family known by the common name Frisco clover.
Other plants in the habitat include Ephedra viridis (Mormon tea), Gutierrezia sarothrae (snakeweed), Cercocarpus intricatus (dwarf mountain-mahogany), and Petradoria pumila (rock goldenrod).
The local region is home to other rare plants, including Eriogonum soredium (Frisco buckwheat) and Lepidium ostleri (Ostler's peppergrass).
[3] Frisco clover is known as a "narrow endemic" because it grows on a particular substrate: gravelly and bouldery volcanic soils, Ordovician limestone, and dolomite.
Mining has occurred in the region for a long time, as the substrates are rich in silver, zinc, lead, gold, and copper.