The pencil cactus, otherwise known as a 'milk bush ... vertical pencil-like branches that grow in a candelabra pattern.

Rhipsalis baccifera, also called “mistletoe cactus,” is a spineless and leafless epiphyte that’s primarily native to tropical and sub-tropical Central and South America, but also to Africa ...

You'll also see on the label that it's designed for not only African violets but other blooming plants as well. As an example of one of the worst fertilizers for encouraging your Christmas cactus ...