Are Frailea and Cyathodes both types of plant?
Frailea Frailea is a genus of globular to short cylindrical cacti native to Brazil. These species are cleistogamous. They were first classified in the genus "Echinocactus".
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.