Organ Mountain rockdaisy (Perityle cernua)
Same genus
- Ajo rockdaisy (Perityle ajoensis)
- Lace-leaved rockdaisy (Perityle ambrosiifolia)
- Twobristle rockdaisy (Perityle bisetosa)
- Fringed rockdaisy (Perityle ciliata)
- Cochise rockdaisy (Perityle cochisensis)
- Emory's rockdaisy (Perityle emoryi)
- Foster's rockdaisy (Perityle fosteri)
- Gila rockdaisy (Perityle gilensis)