Are Echinocactus and Nymphaea from the same family?
Echinocactus Echinocactus is a genus of cacti in the subfamily Cactoideae. The generic name derives from the Ancient Greek εχινος ("echinos"), meaning "spiny," and "cactus". It and "Ferocactus" are the two genera of barrel cactus. Members of the genus usually have heavy spination and relatively small flowers. The fruits are copiously woolly, and this is one major distinction between "Echinocactus" and "Ferocactus". Propagation is by seed.
Pseudohaetera Pseudohaetera is a Neotropical butterfly genus from the subfamily Satyrinae in the family Nymphalidae. The genus was described by F. Martin Brown in 1943.