While Opuntia is from the genus of the cactus family, what genus is the Houttuynia?
Opuntia Opuntia is a genus in the cactus family, Cactaceae.
Melocactus matanzanus Melocactus matanzanus, common name Dwarf Turk's-cap cactus or Turk's-cap cactus, is a cactus in the genus "Melocactus" belonging to the family Cactaceae. The epithet "matanzanus" is derived from the Cuban province of Matanzas.