Epiphyllum anguliger, more commonly known as the fishbone or zigzag cactus - is a gorgeous indoor plant with lots of attitude. 

A very easy plant to care for, once it gets a bit of light and you let the soil dry out fully like you would a cactus. Suitable for a sunny windowsill or in a bright spot. 

There might be a couple of weeks a year (if we are lucky to get some hot hot weather) that you might need to pull it back from the window a little. Especially a south facing window for example. 

Non-toxic, so suitable if you have pets at home that might nibble!