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.
Cyathea macarthurii The plant is a treefern with a trunk up to 4 m in height, either shaggy with dark frond bases, or clear with round scars. The fronds, growing to 50 cm, have prickly stipes covered with a light brown, woolly indumentum.