What is "parthenice"

Parthenice is a genus of flowering plants in the sunflower family.

There is only one known species, Parthenice mollis, the annual monsterwort, native to Arizona (Pima, Santa Cruz, + Cochise Counties) and northwestern Mexico ( Sonora, Chihuahua, Sinaloa, Baja California Sur).

1. Parthenice mollis var. mollis - Arizona, Sonora, Chihuahua, Sinaloa
2. Parthenice mollis var. peninsularis Sauck - Baja California Sur