Selenicereus ((A.Berger)Britton & Rose 1909) Climbing or creeping cacti that typically live in the shade of trees, attaching themselves to them via small aerial roots. Valued for their large and spectacular nocturnal blooms, they are easy to cultivate. Etymology: From the Greek Selene (The Moon) and the Latin term Cereus meaning waxy, from which the term Candle derives.Place of Origin: Central America, Caribbean, and northern South America.