Hello, and thanks for using the Ask an Expert System,
I took your photo to a master Gardeners Meeting in Luzerne County, PA today, and one of my Master Gardener colleagues made the identification of your plant. The plant in your photo is most likely a species of Epiphyllum commonly called a fishbone cactus or zigzag cactus because of the odd appearance of the leaves. The plant is most likely Epiphyllum anguliger, a night blooming cactus that produces white flowers.
If you have additional questions you can contact your local Penn State Extension office.
Lancaster County Penn State ExtensionAddress: 1383 Arcadia Road, Room 140, Lancaster, PA 17601-3184
office Hours: Monday-Friday 8:30 a.m. - 5:00 p.m.