Hymenopappus flavomarginatus

Hymenopappus flavomarginatus is a North American species of flowering plant in the daisy family.
It grows in northern Mexico, in the states of Nuevo León, Coahuila, and San Luis Potosí.
Description.
"Hymenopappus flavomarginatus" is a biennial herb up to tall. It has very narrow divided leaves, resembling branching threads.
Each plant produces numerous flower heads in a flat-topped cluster, each head with 40-50 yellow disc flowers but no ray flowers.