Help! What are these and what should I do?

Those a male pollen sacks. So you have a hermie. If you let it grow they will open and pollenate your plants. So you have a choice of possible seeds, depending on how much longer until maturity, 30 days or more, or cut it now and save the rest of your grow from seeds. If this is your only plant and you let it go, will probably be full of worthseeds in the end.

hey 👋 sorry buddy, you got a hermie... everything you need to know here: https://www.advancednutrients.com/articles/hermaphrodite-cannabis-plants/ Most importantly: - if you have other plants nearby, isolate it immediately. - if you are at the end of flowering, which seems to be the case, then no problem, it will be fine to smoke; a little less potent but nothing dramatic.