Hylocereus undatus

Hylocereus undatus (Red Pitaya) is a species of Cactaceae and is the most cultivated species in the genus. It is used both as an ornamental vine and as a fruit crop - the Pitaya or Dragonfruit. The native origin of the species has never been resolved.
There is a locally famous cacti hedge on a lava rock wall of the Punahou School in Honolulu, the hedge of Kapunahou.

In 1836, Mrs. Bingham planted the hedge of Hylocereus undatus, the famed cacti known in Hawaii as panini o kapunahou. Its exotic blossoms still bloom during the closing summer months on the Punahou walls. The hedge is on two sides of the school and about three hundred meters (football fields) long.

From July to as late as October the hedge blooms and several times there is a wall of white flowers hundreds of yards long. Supposedly all the H. undatus in Hawaii came from the wall of Punahou School. People used to come in the evenings from all over the island to see them blooming and "borrow" some cuttings so that now they have this species all over the islands.

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See Also: florists CA, gift baskets, China flowers