Epiphyllum ‘Andromeda’

The ‘Andromeda’ Epiphyllum is flowering this year. When I bought it last year, it was very small with no flower.

Last Friday, I bought a new Epiphyllum crenatum with three flowers. The crenated/wavy toothed margins of the stems look rather different from the other Epis that we have. According to Wikipedia, Epiphyllum crenatum is one of the most important parents to create cultivated hybrids.