night-blooming cereus

noun5

1. •
   Any of various cacti with night-blooming flowers.
2. •
   moonlight cacti (Selenicereus (syn. Hylocereus) spp.), esp.
3. •
   Selenicereus grandiflorus
4. •
   Gregg's nightblooming cereus (Peniocereus greggii)
5. •
   dutchman's pipe (Epiphyllum oxypetalum)