Are pitaya branches and triangular prisms the same thing?

Yes

Pitaya is rich in nutrition and unique in function. It contains plant albumin and anthocyanins, and is rich in vitamins and water-soluble dietary fiber, which are rare in general plants. Pitaya is a cool fruit. In the natural state, fruits are ripe, sweet and juicy in summer and autumn.

Triangular column, that is, Lady Enforcers, can be said to be the most powerful and overbearing rhizome of cactus. There are almost no shortcomings except that they are not cold-tolerant and fruitless. In the south, even in the wild, even on the roof and in the cracks in the wall, as long as there is a little dirt and moisture, you can run away. In order to increase the yield, even pitaya should use triangular pillars as rootstocks.

Triangular prism and pitaya have three angles, but they also have yin and yang sides. The angles that are relatively non-parallel to the other two are Yang, and the other two are Yin. Therefore, in the cultivation after grafting, remember that the yang angle should always face the light.