Epiphyllum oxypetalum, or Dutchman's-Pipe Cactus, or NIght Queen
is a large epiphytic cactus native from Mexico to Brazil.
In nature, the plants can reach up to 20 feet (6.1 m) in height.
The dark green branches are lanceolate, acuminate to 3 feet (0.9 m)
in length and 4-5 inches (10-12 cm) wide and obliquely crenate.
It is the most common Epiphyllum in cultivation today.
They are very easy to grow and when in bloom they are very showy.