There is no "Cereus peruvianus". The type illustration for "Cereus
peruvianus" is a portion of a stem with no flowers and is completely
unidentifiable.

The plant usually misidentified as "Cereus peruvianus" in the trade is
Cereus hildmannianus, a species from eastern Brazil not Peru.

The plant usually called "Night Blooming Cereus" by amateur growers is
Epiphyllum oxypetalum. Other species of Epiphyllum have also gone under that
name.

The weedy species naturalized in Hawaii and called "Night Blooming Cereus"
is Hylocereus undatus.

Other plants often called "Night Blooming Cereus" include Peniocereus
greggii and various species of Selenicereus. All of the columnar species of
Cactaceae are night bloomers also.


Iris Cohen wrote in message
...
I'm assuming he means Cereus peruvianus.

Now, I always thought it meant Hylocereus undatus. Just to show you he
really
should find out theexact species.

Iris,
Central NY, Zone 5a, Sunset Zone 40
"If we see light at the end of the tunnel, It's the light of the oncoming
train."
Robert Lowell (1917-1977)