About Jamesia americana Torr. & A.Gray
Jamesia americana Torr. & A.Gray is a perennial shrub. Its distribution covers the southern Sierra Nevada, the Rocky Mountains, the Four Corners region, and southern Wyoming, where it is widespread in the Four Corners region and southern Wyoming. It can be told apart from the closely similar species Jamesia tetrapetala: most of J. americana's flower heads have five petals.