Water the flowers

You're not sure it's water, but figure it's fine to water the flowers with the liquid regardless. As you do, starting by the edge of the dead flowers, there's no obvious change, and you can almost see another flower wilting from the corner of your eye. After a full circle, you confirm that the flower did indeed wilt, but the living flowers also seem to be reacting to the liquid- they've started to expel small yellow particles of pollen into the air, many of which stick to your clothes, and you can't help but inhale some.

You cough to try and keep from breathing in the spores, but it's futile as they quickly fill most of the air in the cavern, slowly dispersing out through the two exits and holes in the wall. There doesn't seem to be any immediate effects, but after a few seconds your stomach lets out a low growl, and you realize that you're rather hungry.