Epiphyllums are popular house plants, with numerous hybrids and cultivars. Please click pics.
Epiphyllum "upon the leaf" in Greek) is a genus of 19 species of epiphytic plants in the cactus family (Cactaceae), native to Central America. Common names for these species include orchid cacti and leaf cacti.
The stems are broad and flat, 1-5 cm broad, 3-5 mm thick, usually with lobed edges. The flowers are large, 8-16 cm diameter, white to red, with numerous petals.
The fruit is edible.
Believe it or not:
Gardens are not made by sitting in the shade. TS
Photos from my garden TS