Guardiola diehlii
Guardiola diehlii is a very rare North American species of plants in the family Asteraceae, found only in the state of New Mexico in the southwestern United States.
Guardiola diehlii is an annual herb measuring up to tall. Its leaves are long and narrow, measuring up to long. One plant will produce several flower heads in a flat-topped array. Each head contains only one white ray flower and 4 disc flowers.