What are these little twig looking things on my night blooming cereus

Question

These little sprigs are on a few of the leaves.

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Answer 1

These are aerial roots! They don't need to be removed, or even concerned with, unless you are going to take a cutting, and root a second plant. Then, these will take off into the new root structure.

This article will give you more information on the care of these plants: https://www.gardeningknowhow.com/ornamental/cacti-succulents/night-blooming-cereus/night-blooming-cereus.htm