Are Frailea and Cyathodes both types of plant?
Cyathodes Cyathodes is a genus of shrubs within the heath family. A characteristic feature of the genus is a deeply five-cleft calyx.
Silene villosa Silene villosa, or Desert Campion, is a therophyte and an annual plant of the family Caryophyllaceae and genus "Silene". It has ascending and spreading branches of around 50 cm. It blooms from February to April and its flowers are white, tubular, and solitary.